Author Topic: Can I keep the TBI with a new, bigger engine?  (Read 7699 times)

Offline VileZambonie

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Re: Can I keep the TBI with a new, bigger engine?
« Reply #15 on: March 15, 2008, 07:02:17 AM »
what is the TPI,and ASI and how do i set them that may be my problem with my truck i have a dead spot double peddle to get past it.

 ???

76 scottsdale, are you swapping the entire axle assembly or just ring and pinion?
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74 GMC, 75 K5, 84 GMC, 85 K20, 86 k20, 79 K10

Offline 1976Scottsdale

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Re: Can I keep the TBI with a new, bigger engine?
« Reply #16 on: March 15, 2008, 03:40:19 PM »
My bad, I am just swapping the ring and pinion... I hope for now.  If I need a new carrier, then I guess I'll be doing that too.  Getting ready to find out what gears I have shortly.  Just have to go get a new gasket for the cover.  Then I won't be having to beg for answers to my educated guesses, I will have some real facts.

Offline 78 Chevyrado

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Re: Can I keep the TBI with a new, bigger engine?
« Reply #17 on: March 25, 2008, 11:38:45 PM »
I did that same swap in my old 87 r-10.  I put a 1973 400 in it and kept the tbi.  it came with a 305 originally, th700r4 and 2.something gears.  I got a 350 computer box out of a suburban for the chip, and put new 454 injectors in the tbi and used the original parts from the tbi setup otherwise.  also i had a mild rv cam in the engine, tbi's don't like hot cams without major changes, starting with a custom chip.

here's a pic of it right before it went in...
Kenny

1978 C-20, 350/400, 3.73, Graystone Metallic, Raceline Renegade 8 Wheels - 18x8.5, 275/70R18 BFG KO's