BB tune up specs help, spark knock - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Bill72BB · 01-25-2004, 02:20 AM

veltex

Don't know if this is going to help but here is how I jetted the 1406 for the BB .
Primary jets .098
Secondary .101
Rods 73/42

veltex · 02-14-2004, 01:44 AM

well, not carb gaskets, cant find any air leaks, tried bigger jets in carb, no, had exhuast leaks fixed today whole system is good now (huge difference in drivability), after work today switched back to Quadra-jet, still does it. I cant imagine any Quadra-jet running lean, heck maybe its something wrong in the valve train, man I am really ready to just run this thing with the radio on and wait for something to break. I am really fussy with the running condition of my other cars, and this pickup is such a cream puff, maybe a nice 454 with a good 396 crank, good pistons and rods, roller hydralic, and the right upper goodies, all balanced together would make a nice 427? Who am I kidding, I want to find and fix the problem, isnt that what men do? Thanks for listening, this forum is therapy sometimes.

cduster · 02-14-2004, 02:48 AM

Have you tried putting the old dist back in?

01-25-2004, 02:20 AM	#26
Bill72BB Thats the Hillbilly way Join Date: Jul 2001 Location: Torrance,Ca Posts: 5,980	veltex Don't know if this is going to help but here is how I jetted the 1406 for the BB . Primary jets .098 Secondary .101 Rods 73/42 __________________ BILL Torrance Calif 90504 Member DUF Club Member Old Farts Club 72 3/4ton Custom Camper BB402/400 trans Dynomax Cerama-coat headers , Hei distributor ,Edelbrock 1411 air,ps,pb,leafsprings ,98 chevy 60/40 seat,S10 shoulder belts tilt,3.54 Dana 60 rear. 16" Eagle wheels with LT265/75 16 tires,Gaylord Lid,H4 headlights with 100W relay conversion. " If I knew I was going to live this long I would have taken better care of myself " Marriage changes passion...suddenly you're in bed with a relative. A GUY'S PRAYER.... Lord, I pray for a nympho with huge boobs who owns a liquor store and likes to fish and hunt and has a Harley .Amen ,

02-14-2004, 01:44 AM	#27
veltex Registered User Join Date: Oct 2003 Location: Idaho Posts: 257	well, not carb gaskets, cant find any air leaks, tried bigger jets in carb, no, had exhuast leaks fixed today whole system is good now (huge difference in drivability), after work today switched back to Quadra-jet, still does it. I cant imagine any Quadra-jet running lean, heck maybe its something wrong in the valve train, man I am really ready to just run this thing with the radio on and wait for something to break. I am really fussy with the running condition of my other cars, and this pickup is such a cream puff, maybe a nice 454 with a good 396 crank, good pistons and rods, roller hydralic, and the right upper goodies, all balanced together would make a nice 427? Who am I kidding, I want to find and fix the problem, isnt that what men do? Thanks for listening, this forum is therapy sometimes. __________________ beater 65 gmc at the moment

02-14-2004, 02:48 AM	#28
cduster Registered User Join Date: Oct 2002 Location: S.W. Michigan Posts: 403	Have you tried putting the old dist back in?



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