TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Jul 21, 2003 | 09:16 PM
  #1  
Rage13's Avatar
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From: Pembroke Pines, FL
Car: 89 Firebird
Engine: 305
Transmission: T5
TPI upgrades

I've got a TPI system i pulled out of an 88' 305, and am planing on putting it on my 84' 305. What kinda stuff would you guys suggest upgrading while I have it all apart and cleaning it? I belive I need to get a different intake manifold so it will bolt up to my heads, I was thinking about either going to edelbrock or TPiS for the manifold and SLP for some high flow runners. I plan on port and polishing everything inside and out too. So what else can you guys throw in?
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Old Jul 23, 2003 | 08:36 PM
  #2  
Rage13's Avatar
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From: Pembroke Pines, FL
Car: 89 Firebird
Engine: 305
Transmission: T5
no comments? I know there must be more i can do then what i posted..
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Old Jul 23, 2003 | 08:54 PM
  #3  
FruityOne's Avatar
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From: Elk Grove Village, IL
Car: 1989 TransAm GTA
Engine: One sweet modified 355 TPI.
Transmission: The kind that shifts....
Ummm....as far as intake work you just about mentioned everything.

Aftermarket runners and base

Ported & Polished the plenum, base, and runners.

There are other things to do, but the question is are you going to need the air flow of a larger throttle body?
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Old Jul 24, 2003 | 04:40 PM
  #4  
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From: San Antonio, TX
Car: 1988 IROC-Z
Engine: L98 (350 TPI)
Transmission: MD8 (700 R4) + 3.42 LS1 Rear
a slighty better cam than the stock one. i'd change that now rather than later. also get one with around 112* LSA.(computer freindly cam)
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Old Jul 24, 2003 | 05:01 PM
  #5  
AaronIROCZ's Avatar
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From: Tomball Texas
you dont need a different intake to bolt up to the older block, you judt need to elongate the center 2 bolt holes on each side. Unless you still want to upgrade.
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