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-   -   TBI ON OLD Chevy (https://forums.off-road.com/gm-standard-ifs-trucks-suvs/41182-tbi-old-chevy.html)

**DONOTDELETE** 10-08-2000 01:10 AM

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.

**DONOTDELETE** 10-08-2000 02:31 AM

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


dave 10-08-2000 02:28 PM

Re: TBI ON OLD Chevy
 
give this company a try http://www.howell-efi.com
dave


**DONOTDELETE** 10-09-2000 06:47 PM

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.

dave 10-09-2000 08:10 PM

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.
dave


**DONOTDELETE** 10-16-2000 04:25 PM

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


**DONOTDELETE** 10-16-2000 06:20 PM

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.

dave 10-16-2000 07:25 PM

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.
dave



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