Installed my Glorified Holley Last Night - The 1947 - Present Chevrolet & GMC Truck Message Board Network

codydubb · 03-07-2011, 12:27 AM

Recieved my Demon 750 the other day and finally got the time to throw her on last night and take her for a spin....She runs like a CHAMP! No leaks no problems! Love the hell out of it!!! Still think im in need of some bigger heads but it runs alot better than that old 650 Holley did.

jrcaprai · 03-07-2011, 01:21 AM

Awesome! Glad to hear it

Toxic Redline · 03-07-2011, 01:16 PM

GUULLPP

codydubb · 03-07-2011, 03:01 PM

Quote:

GUULLPP

Your not kidding!!!

jasonroman · 03-07-2011, 05:29 PM

one belt??
mine has like 5
stock carb an like 500 lines running all oner the place.

looks good
enjoy it
when its time think im gona get an ebrock

codydubb · 03-07-2011, 05:53 PM

Its got 2 belts. Mine did at first when i got it too bet i pulled out 5 pounds of wiring- it used to be tbi way back when, one of my next projects is getting rid of that a/c box!

jasonroman · 03-07-2011, 06:24 PM

howd you go about getting rid of all the mess?
how do i know what i need and dont need?
my truck has ac. but i never use it. that will eventually be going too

guess i need to get the carb, and intake mani, then i can loose some of the extra mess.

thanks and good luck with truck

codydubb · 03-07-2011, 06:57 PM

I just got a wiring diagram of the truck and traced down what i needed and what i didnt need, getting rid of your tbi distributor and manifold would be step 1 then eliminating wires will come pretty easy after that

jrcaprai · 03-07-2011, 08:22 PM

Is it a Speed Demon or a Mighty Demon ??? and what kind of brackets are you using with the Elec H20 Pump???

codydubb · 03-07-2011, 08:43 PM

Its a Speed Demon. Its a Proform water pump the bracket setup is from Marsh Performance thought it was gonna be a cheap conversion come to find out i had to buy the $175 Marsh alternator bracket adapter. Summit told me i would have to buy an additional bracket adapter for the powersteering pump but with a little modification and ingenuity i got my pump to mount and line up just perfect. you can get both bracket adapters for $300 for a set i believe, but will need the alternator one for sure well worth the money to figure it out on your own though

von guido · 03-08-2011, 12:30 PM

have fun.. i hope you never backfire thru the carb.

shortbed70 · 03-08-2011, 02:29 PM

Quote:

Originally Posted by von guido

have fun.. i hope you never backfire thru the carb.

Don't have to worry aout that with a demon. I love my 650 speed demon on my 361 sbc. Fires right up and doesn't have to be tuned every other day!
Posted via Mobile Device

codydubb · 03-08-2011, 04:35 PM

Quote:

have fun.. i hope you never backfire thru the carb

why would that be?

spudz · 03-08-2011, 05:10 PM

Quote:

Originally Posted by codydubb

why would that be?

he is just thinkin of old holleys. When they backfire through the carb, they blow out the power valve... And thats still not a big deal.

von guido · 03-09-2011, 12:51 AM

Quote:

Originally Posted by shortbed70

Don't have to worry aout that with a demon. I love my 650 speed demon on my 361 sbc. Fires right up and doesn't have to be tuned every other day!
Posted via Mobile Device

i had a 650 speed demon when they first came out..it was actually a good one!

Quote:

Originally Posted by spudz

he is just thinkin of old holleys. When they backfire through the carb, they blow out the power valve... And thats still not a big deal.

how is blowing a power valve not a big deal???

anyway, I have personally run demons of all sizes,625 road demon on a stock crate 350,650 road demon on a built 355, a 750 speed demon on a mild 454 an my pops had a pair of boost referenced 850 mighty demons on his blown 540 bbc. I have NEVER seen another carb that is so finicky and hard to tune much less reliable in my life. When I worked for summit racing, we quit carrying demon because 80% of them came back to us. I have holleys or QFT carbs on my vehicles now.

spudz · 03-09-2011, 09:52 AM

Quote:

Originally Posted by von guido

i had a 650 speed demon when they first came out..it was actually a good one!

how is blowing a power valve not a big deal???

anyway, I have personally run demons of all sizes,625 road demon on a stock crate 350,650 road demon on a built 355, a 750 speed demon on a mild 454 an my pops had a pair of boost referenced 850 mighty demons on his blown 540 bbc. I have NEVER seen another carb that is so finicky and hard to tune much less reliable in my life. When I worked for summit racing, we quit carrying demon because 80% of them came back to us. I have holleys or QFT carbs on my vehicles now.

Its not a big deal because u can fix it in like 15 mins......

03-07-2011, 12:27 AM	#1
codydubb Registered User Join Date: Mar 2010 Location: Preston Id Posts: 86	Installed my Glorified Holley Last Night Recieved my Demon 750 the other day and finally got the time to throw her on last night and take her for a spin....She runs like a CHAMP! No leaks no problems! Love the hell out of it!!! Still think im in need of some bigger heads but it runs alot better than that old 650 Holley did. __________________ 1985 Chevy C10 350 .60 over iron eagle h-beam rods, sealed power high comp pistons, forged crank, vortec heads, edelbrock performer rpm vortec intake, roller rockers, .488 .510 cam 750 Demon Double Pumper, Longtube headers, Dual Flowmaster exhaust,Dual electric fans, Proform electric water pump. TCI 3500 Stall Converter th350 trans B&M shift kit 10 bolt 3.73 Detroit Locker

03-07-2011, 01:21 AM	#2
jrcaprai Registered User Join Date: May 2008 Location: Salt Lake City Posts: 365	Re: Installed my Glorified Holley Last Night Awesome! Glad to hear it

03-07-2011, 01:16 PM	#3
Toxic Redline Registered User Join Date: May 2010 Location: Ogden, Utah Posts: 219	Re: Installed my Glorified Holley Last Night GUULLPP __________________ 84 K20 Long Box W.I.P 78 Burb - parts now [Rolled] 68 c20 dump bed WHEN IN DOUBT--- FLOOR IT

03-07-2011, 05:29 PM	#5
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	Re: Installed my Glorified Holley Last Night one belt?? mine has like 5 stock carb an like 500 lines running all oner the place. looks good enjoy it when its time think im gona get an ebrock

03-07-2011, 05:53 PM	#6
codydubb Registered User Join Date: Mar 2010 Location: Preston Id Posts: 86	Re: Installed my Glorified Holley Last Night Its got 2 belts. Mine did at first when i got it too bet i pulled out 5 pounds of wiring- it used to be tbi way back when, one of my next projects is getting rid of that a/c box! __________________ 1985 Chevy C10 350 .60 over iron eagle h-beam rods, sealed power high comp pistons, forged crank, vortec heads, edelbrock performer rpm vortec intake, roller rockers, .488 .510 cam 750 Demon Double Pumper, Longtube headers, Dual Flowmaster exhaust,Dual electric fans, Proform electric water pump. TCI 3500 Stall Converter th350 trans B&M shift kit 10 bolt 3.73 Detroit Locker

03-07-2011, 06:24 PM	#7
jasonroman Registered User Join Date: Jul 2008 Location: sayreville nj Posts: 1,072	Re: Installed my Glorified Holley Last Night howd you go about getting rid of all the mess? how do i know what i need and dont need? my truck has ac. but i never use it. that will eventually be going too guess i need to get the carb, and intake mani, then i can loose some of the extra mess. thanks and good luck with truck

03-07-2011, 06:57 PM	#8
codydubb Registered User Join Date: Mar 2010 Location: Preston Id Posts: 86	Re: Installed my Glorified Holley Last Night I just got a wiring diagram of the truck and traced down what i needed and what i didnt need, getting rid of your tbi distributor and manifold would be step 1 then eliminating wires will come pretty easy after that __________________ 1985 Chevy C10 350 .60 over iron eagle h-beam rods, sealed power high comp pistons, forged crank, vortec heads, edelbrock performer rpm vortec intake, roller rockers, .488 .510 cam 750 Demon Double Pumper, Longtube headers, Dual Flowmaster exhaust,Dual electric fans, Proform electric water pump. TCI 3500 Stall Converter th350 trans B&M shift kit 10 bolt 3.73 Detroit Locker

03-07-2011, 08:22 PM	#9
jrcaprai Registered User Join Date: May 2008 Location: Salt Lake City Posts: 365	Re: Installed my Glorified Holley Last Night Is it a Speed Demon or a Mighty Demon ??? and what kind of brackets are you using with the Elec H20 Pump???

03-07-2011, 08:43 PM	#10
codydubb Registered User Join Date: Mar 2010 Location: Preston Id Posts: 86	Re: Installed my Glorified Holley Last Night Its a Speed Demon. Its a Proform water pump the bracket setup is from Marsh Performance thought it was gonna be a cheap conversion come to find out i had to buy the $175 Marsh alternator bracket adapter. Summit told me i would have to buy an additional bracket adapter for the powersteering pump but with a little modification and ingenuity i got my pump to mount and line up just perfect. you can get both bracket adapters for $300 for a set i believe, but will need the alternator one for sure well worth the money to figure it out on your own though __________________ 1985 Chevy C10 350 .60 over iron eagle h-beam rods, sealed power high comp pistons, forged crank, vortec heads, edelbrock performer rpm vortec intake, roller rockers, .488 .510 cam 750 Demon Double Pumper, Longtube headers, Dual Flowmaster exhaust,Dual electric fans, Proform electric water pump. TCI 3500 Stall Converter th350 trans B&M shift kit 10 bolt 3.73 Detroit Locker

03-08-2011, 12:30 PM	#11
von guido Registered User Join Date: Sep 2009 Location: outside atlanta Posts: 156	Re: Installed my Glorified Holley Last Night have fun.. i hope you never backfire thru the carb.



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