This has probably been asked, but can I use my 305 TPI unit on a 350 that I am building? Do I need differant injectors? What else do I need to change? The 350 is going into my 91 Z28 and I will be using the stock 5 speed.

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• 1991 Z28
• Ultra Metallic Blue
• 305 TPI
• 5 Spd Manual
• 3:08 rear axle

members.fbody.com/rwendt/

 

The TPI unit is the exact same for both engine. The 305 injectors are 19lb/hr, and the 350 units are 22lb/hr. You'll want new injectors eventually, but for now, you could run the 305 injectors at a higher than stock fuel pressure and do fine.

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91 Trans Am WS6
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

supposed 'peanut cammed' car (yeah, right)

MoreMoodThatMod

 

Nod, the Injectors and i believe the prom chip is diffrent aswell as the knock sensor

-Stell