TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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Old Jan 20, 2015 | 04:17 PM
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irockid43's Avatar
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Joined: Feb 2012
Posts: 77
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From: Spirit Lake, ID
Car: 86 IROC-Z
Engine: 355
Transmission: T5
Axle/Gears: 3.23
TPI 355 Mods

Hey Guys,

I am doing a little work on my 86 IROC and would love some advice/opinions!

I currently have a TPI 355 in front of a T5 in the car.

I am running ported 441 heads with 10.25-1 pistons and a mild cam (comp 206/212 480/487)

Anyway,
I picked up some Edelbrock Aluminum RPM heads to put on. I am also doing some port work to the TPI base and runners.

I am hoping to change the cam while the engine is out.

I was thinking of going with a LT4 Hot Cam??

I am running 22LB injectors with a Holley AFPR.

I have had my PROM tuned to the engine/trans combo I am running now.

ANY advice on cam selection, foreseeable tuning issues, or any other 2 cents would be greatly appreciated.

(I have looked through a lot of other threads, but was hoping to get some more info!!)

Thanks!!
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