carb question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Dean23 · 04-17-2002, 07:47 PM

I have a 350 with a L-79 cam, 9.5 comp and headers. I bought a performer rpm and the recommended carb is a 750. Do you think that is too much carb or would an edelbrock 600 be better than the 750. And would you go with auto or manual choke.

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Dean
edmonton,canada
68 c10, project in works,350, th350, plain jane.
SLOW AND STEADY GETS THE PANELS READY
http://communities.msn.ca/MyChevytruckpage

Mountain Man · 04-17-2002, 07:52 PM

You have a similar engine spec to mine. I had a 795cfm QJet, and replaced it with a 1406Edelbrock( which I drove for the first time last weekend). It has no hesitation, faster acceleration, and I believe that it feeds the engine more efficiently with the 600 , vs the 795. Just my opinion. Also, I had electric choke on the QJet as well as now with the Edelbrock.

69 longhorn · 04-17-2002, 07:54 PM

Thats a pretty healthy cam,& you have the compresssion .......I would go for the 1407(Im guessin not a daily driver).....69

Dean23 · 04-17-2002, 07:58 PM

thanks guys, it wont be a daily driver. My boss thought it would be ok as well he said it is better to have too much than not enough carb. My boos is into hi performance as well. I just wanted the opinions from the guys on here. Cause they are gods.Lol. My boss has a 69 nova that runs 13.6's at 113.He ithrowing a 500 caddy into his 32 ford pickup.

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Dean
edmonton,canada
68 c10, project in works,350, th350, plain jane.
SLOW AND STEADY GETS THE PANELS READY
http://communities.msn.ca/MyChevytruckpage

JW · 04-17-2002, 08:36 PM

My engine is a 350 ci, 340 hp, cam, heads, ported, headers, alumn hi-rise, HEI, balanced, used a Holley 6210-3, 650 cfm spread bore replacement for the rochester.

Need a 2bl, sucks gas like there is a hole in the gas tank.

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72 Cheyenne Super, Fleetside, Shortbed,
Original Owner
Northern Calif

704x4 · 04-17-2002, 08:38 PM

my theory would be to use the smaller carb because the size of the primarys and secondaries on a qjet are a night and day difference than on the edelbrock.

i just had to say it because i just went through the problem of too much carb on my 350 (9.5:1 comp, but not that big of a cam)

with not enough carb it will only hurt high rpm, but i think you would be fine up to 6500rpm with the 600cfm edelbrock

Dean23 · 04-17-2002, 08:39 PM

I just want it for cruisin round the city on weekends and the odd trip. I am still lookin for a 700r4 so that would help economy on the hiway.

------------------
Dean
edmonton,canada
68 c10, project in works,350, th350, plain jane.
SLOW AND STEADY GETS THE PANELS READY
http://communities.msn.ca/MyChevytruckpage

Dean23 · 04-20-2002, 07:20 PM

ttt

**Desert Rat** · 04-20-2002, 09:05 PM

Im running a 600 Edelbrock on stock big blocks/i have 750 for 454 larger,and healthy application.I found the 600 to respond alot faster,but get the manual choke they are more performane they run fatter.and theyre cheaper that the electric chokes.

04-17-2002, 07:47 PM	#1
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	carb question I have a 350 with a L-79 cam, 9.5 comp and headers. I bought a performer rpm and the recommended carb is a 750. Do you think that is too much carb or would an edelbrock 600 be better than the 750. And would you go with auto or manual choke. ------------------ Dean edmonton,canada 68 c10, project in works,350, th350, plain jane. SLOW AND STEADY GETS THE PANELS READY http://communities.msn.ca/MyChevytruckpage __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

04-17-2002, 07:52 PM	#2
Mountain Man Registered User Join Date: Jan 2002 Location: Calgary, Alberta, Canada Posts: 451	You have a similar engine spec to mine. I had a 795cfm QJet, and replaced it with a 1406Edelbrock( which I drove for the first time last weekend). It has no hesitation, faster acceleration, and I believe that it feeds the engine more efficiently with the 600 , vs the 795. Just my opinion. Also, I had electric choke on the QJet as well as now with the Edelbrock. __________________ 72 C10 Cheyenne Super Full trim Factory tach dash A/C dash Factory tilt 350 / 350 power train - with Edelbrock components.

04-17-2002, 07:54 PM	#3
69 longhorn Registered User Join Date: Aug 2001 Location: rock island,il,usa Posts: 5,382	Thats a pretty healthy cam,& you have the compresssion .......I would go for the 1407(Im guessin not a daily driver).....69 __________________ http://community.webshots.com/user/hotrodhorn

04-17-2002, 07:58 PM	#4
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	thanks guys, it wont be a daily driver. My boss thought it would be ok as well he said it is better to have too much than not enough carb. My boos is into hi performance as well. I just wanted the opinions from the guys on here. Cause they are gods.Lol. My boss has a 69 nova that runs 13.6's at 113.He ithrowing a 500 caddy into his 32 ford pickup. ------------------ Dean edmonton,canada 68 c10, project in works,350, th350, plain jane. SLOW AND STEADY GETS THE PANELS READY http://communities.msn.ca/MyChevytruckpage __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

04-17-2002, 08:36 PM	#5
JW Registered User Join Date: Apr 2000 Location: Carmichael, Ca Posts: 67	My engine is a 350 ci, 340 hp, cam, heads, ported, headers, alumn hi-rise, HEI, balanced, used a Holley 6210-3, 650 cfm spread bore replacement for the rochester. Need a 2bl, sucks gas like there is a hole in the gas tank. ------------------ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner Northern Calif __________________ 72 Cheyenne Super, Fleetside, Shortbed, Original Owner, Special Ordered 350ci/340hp, Auto Trans, 3:70 Posi, Tow Package Northern Calif

04-17-2002, 08:38 PM	#6
704x4 Registered User Join Date: Feb 2002 Location: Greene, Iowa Posts: 150	my theory would be to use the smaller carb because the size of the primarys and secondaries on a qjet are a night and day difference than on the edelbrock. i just had to say it because i just went through the problem of too much carb on my 350 (9.5:1 comp, but not that big of a cam) with not enough carb it will only hurt high rpm, but i think you would be fine up to 6500rpm with the 600cfm edelbrock __________________ 70 3/4 ton 4x4 FOR SALE Greene, IA

04-17-2002, 08:39 PM	#7
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	I just want it for cruisin round the city on weekends and the odd trip. I am still lookin for a 700r4 so that would help economy on the hiway. ------------------ Dean edmonton,canada 68 c10, project in works,350, th350, plain jane. SLOW AND STEADY GETS THE PANELS READY http://communities.msn.ca/MyChevytruckpage __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

04-20-2002, 07:20 PM	#8
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	ttt __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

04-20-2002, 09:05 PM	#9
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Im running a 600 Edelbrock on stock big blocks/i have 750 for 454 larger,and healthy application.I found the 600 to respond alot faster,but get the manual choke they are more performane they run fatter.and theyre cheaper that the electric chokes.



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