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350 carb swap

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Old Sep 9, 2010 | 01:47 PM
  #1  
dustformula's Avatar
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Joined: Sep 2010
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From: ss of indianapolis
Car: 1989 firebird formula
Engine: 350 carb.
Transmission: 700r4
350 carb swap

would this TPI block fit with my holley carb and edlebrock intake with no adjustments? http://www.chevy-350-engines.com/chevy-engine-246.html

my car is an 89 firebird formula with a (recently) blown 350 in it due to over speed. im just not sure how much it would take to put this block in with out the TPI system and a carb system instead, any help would be great
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Old Sep 9, 2010 | 04:44 PM
  #2  
camaronewbie's Avatar
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Joined: Sep 2002
Posts: 9,192
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From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: 350 carb swap

1) Intake may have different bolt hole angle - might have to drill the intake holes to match the angle - there's a ton of threads here about it

2) You'll need to change fuel pressure - you'll either have to

a) drop tank, swap fuel pump out for a carb pickup, and use a mech pump on block
b) drop tank, swap fuel pump out for a carb pickup, and use external electric carb pump
c) leave pump in tank, and use a Mallory 4309 regulator (or equivalent return-style reg)

3) You'll have to get a HEI vac advanced dist

4) You'll need a new TV cable from a carb or TBI car

5) You'll need a geometry corrector for the TV cable to carb connection

6) You'll need a method of locking the torque converter (sticky in carb forum)

7) You'll need a new throttle cable bracket

8) You'll need a fan controller for your fans
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