TBI Heads on a 1970 Block Carb'd - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Andrij · 12-18-2021, 02:35 PM

Looking to put the old TBI Heads on a 1970 Block, I bought it smoking with 305 heads & while apart thought I'd put on better heads.
14102193 65cc TBI 1.94 intakes and 1.50 exaust
GM 391467 350 small block
Thinking of a dual plane intake with a Holley carb
Been looking around the forum, & I'm flooded with carb to TBI computer stuff, to TBI to VORTEC, & though having 906s, planning to stick with TBI since my light foot seldom goes over 2000 RPM.
Seeing if anyone has any advice for a cam, picking a gasket, or anything else you'd like to impart. Thank you.

**HO455** · 12-18-2021, 03:20 PM

I have no information. But if you don't get a responses try reposting on the engne side of the forum. I have had success there in the past. Or look to the years the TBI came installed from the factory.

5025speed · 12-18-2021, 06:47 PM

You might try SS454 or Harris tuning.

Warrens69GMC · 12-18-2021, 08:38 PM

Dual plane with a Holley?
Edelbrock 2701, dremel out the 2 center bolt holes on both sides, Holley 600VC

Dual plane with a Edelbrock?
Edelbrock 2701, dremel out the 2 center bolt holes on both sides, Edelbrock 500CFM

Edelbrocks tend to run richer up to 4000 IMO, hense the 500cfm

Tbi-
Stock "K engine code computer" 1987-1993, stock intake for 1987-1995 , Edelbrock 2102 cam and lifter or equivalent

engine harness
https://affordable-fuel-injection.co...iring-harness/

2701

Andrij · 12-19-2021, 03:42 AM

Thank you warren, we are on the same page about carburators on an intake. (The 2701 is for 1986 blocks on down & as you said need to be modified, 2104 is for 1987-1995 -which I need for my 1987-1995 tbi heads. Worse case scenarioI go with stock heads & an adapter plate) I offered a guy his asking price the last 2 weeks but I just get the run around. But there are other fishes out in the sea! Thank you guys for your advice.
Also not doing the tbi electrical hookup... 3 spd on the tree, carb... what's to hookup?
For anyone trying to do something with 193 heads, I changed my search to 14102193 & in hotrodders.com found BogiesAnnex1:
...they will take to a cam up to about 200 on the intake & 215 degrees on the exhaust with 110 degrees or more of Lobe Separation Angle LSA...
*
You want an aftermarket set around 4 degrees advance will pick up even more bottom end for ya
.
Thirdgen lookup fast 355
He suggests a F/Y car LT1 cam or similar aftermarket cam
Like The comp 4x4 206/210 @ .050 or Elgin E1136
..
*OEM ... timing sets are indexed about 4 to 6 degrees retarded

12-18-2021, 02:35 PM	#1
Andrij Registered User Join Date: Sep 2005 Location: Copperas Cove, TX Posts: 36	TBI Heads on a 1970 Block Carb'd Looking to put the old TBI Heads on a 1970 Block, I bought it smoking with 305 heads & while apart thought I'd put on better heads. 14102193 65cc TBI 1.94 intakes and 1.50 exaust GM 391467 350 small block Thinking of a dual plane intake with a Holley carb Been looking around the forum, & I'm flooded with carb to TBI computer stuff, to TBI to VORTEC, & though having 906s, planning to stick with TBI since my light foot seldom goes over 2000 RPM. Seeing if anyone has any advice for a cam, picking a gasket, or anything else you'd like to impart. Thank you.

12-18-2021, 03:20 PM	#2
HO455 Post Whore Join Date: Feb 2016 Location: Portland Oregon Posts: 10,948	Re: TBI Heads on a 1970 Block Carb'd I have no information. But if you don't get a responses try reposting on the engne side of the forum. I have had success there in the past. Or look to the years the TBI came installed from the factory. __________________ Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377

12-18-2021, 06:47 PM	#3
5025speed Registered User Join Date: Oct 2007 Location: arlington, washington Posts: 27	Re: TBI Heads on a 1970 Block Carb'd You might try SS454 or Harris tuning.

12-18-2021, 08:38 PM	#4
Warrens69GMC Registered User Join Date: Jan 2003 Location: Safford,AZ Posts: 3,613	Re: TBI Heads on a 1970 Block Carb'd Dual plane with a Holley? Edelbrock 2701, dremel out the 2 center bolt holes on both sides, Holley 600VC Dual plane with a Edelbrock? Edelbrock 2701, dremel out the 2 center bolt holes on both sides, Edelbrock 500CFM Edelbrocks tend to run richer up to 4000 IMO, hense the 500cfm Tbi- Stock "K engine code computer" 1987-1993, stock intake for 1987-1995 , Edelbrock 2102 cam and lifter or equivalent engine harness https://affordable-fuel-injection.co...iring-harness/ 2701 Attached Images

12-19-2021, 03:42 AM	#5
Andrij Registered User Join Date: Sep 2005 Location: Copperas Cove, TX Posts: 36	Re: TBI Heads on a 1970 Block Carb'd Thank you warren, we are on the same page about carburators on an intake. (The 2701 is for 1986 blocks on down & as you said need to be modified, 2104 is for 1987-1995 -which I need for my 1987-1995 tbi heads. Worse case scenarioI go with stock heads & an adapter plate) I offered a guy his asking price the last 2 weeks but I just get the run around. But there are other fishes out in the sea! Thank you guys for your advice. Also not doing the tbi electrical hookup... 3 spd on the tree, carb... what's to hookup? For anyone trying to do something with 193 heads, I changed my search to 14102193 & in hotrodders.com found BogiesAnnex1: ...they will take to a cam up to about 200 on the intake & 215 degrees on the exhaust with 110 degrees or more of Lobe Separation Angle LSA... * You want an aftermarket set around 4 degrees advance will pick up even more bottom end for ya . Thirdgen lookup fast 355 He suggests a F/Y car LT1 cam or similar aftermarket cam Like The comp 4x4 206/210 @ .050 or Elgin E1136 .. OEM ... timing sets are indexed about 4 to 6 degrees retarded Last edited by Andrij; 12-20-2021 at 03:38 PM.*



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