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post #1 of (permalink) Old 10-08-2000, 01:10 AM
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TBI ON OLD Chevy

i have been looking at hollys pro jection II system 1300.00 and also the tuned port injection from them a would guese they are more money. I have a 454 BBC with 10.1 ,gear drive, roller rockers and LS7 rods the heads are 781 ovel ports with the large vales i think they are lik 2.66 cant rember what ever the big stock ones are (cam is a roller 4x4)have not bought it yet might end up just hyd. any way what would be the better choice between the two. also is there any way to put a stock tbi or throttle body on the BBC. I really dont want to spend a bunch of money if i dont have to. I have seen throttle bodys for SBC with everything for 200.00 in the trader. could i get an intake and make these work. i have run these with 750 holly carb and the stock throttle body is rated at 800 i think i could be wronge any way. I am just tired of getting stuck on hills and running poorly on rough gound. also would help out on MPG. Of course it dont help that i suxk on building carbs.lol thanks for your time.

If it has tits or tires it will give you trouble.
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post #2 of (permalink) Old 10-08-2000, 02:31 AM
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Re: TBI ON OLD Chevy

someone had one for sale in the for sale section i read this morning for i think 350 with a new manifold

post #3 of (permalink) Old 10-08-2000, 02:28 PM
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Re: TBI ON OLD Chevy

give this company a try http://www.howell-efi.com
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post #4 of (permalink) Old 10-09-2000, 06:47 PM
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Re: TBI ON OLD Chevy

man looked though them all and did not find it. what was it under

If it has tits or tires it will give you trouble.
post #5 of (permalink) Old 10-09-2000, 08:10 PM
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Re: TBI ON OLD Chevy

Well, I have another idea that could help. Holley makes a TBI to Quadrajet/Holley 4 barrel adapter plate, Holley part # 17-41. There are options for intake manifolds for the oval port heads, I'd use an Edlebrock Performer intake manifold for a truck application. Now the next idea I have would be to get a Chevy 350 TBI system. Then have http://www.turbocity.com modify the 350 TBI with a larger throttle blades to increase air flow. Then get the Chevy 350 TBI computer PROM chip recalibrated for the 454. It's still not cheap, but affordable.
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post #6 of (permalink) Old 10-16-2000, 04:25 PM
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Re: TBI ON OLD Chevy

CHeck this out. It is an Edelbrock BBC intake for TBI. http://cgi.ebay.com/ebaymotors/aw-cg...item=464966977

post #7 of (permalink) Old 10-16-2000, 06:20 PM
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Re: TBI ON OLD Chevy

I like your Idea so far. Ill be cheacking on it. do u know how much a stock tbi flows?

If it has tits or tires it will give you trouble.
post #8 of (permalink) Old 10-16-2000, 07:25 PM
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Re: TBI ON OLD Chevy

The information I have about the CFM of GM 350 TBI of the late 80's early 90's is only 505 CFM. The information I have about installing larger throttle blades would improve the 350 TBI to about 565 CFM.
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