Looking For some advice
Looking For some advice
I bought an 89 Trans am 350tpi with a Comp Cam08-503-8 the heads are milled, 30lb Holley injectors and Hays Twister 3/4 Race Torque Converter 2800 stall(previous owners upgrades). What I have had done so far is add dyno don headers with Flomaster and have a custom prom. I've also added strutbrace/wonderbar and new koni shocks and struts. Everything else is basically stock. My goal is a fun weekend street car with some power but with everything that has been done to it, the car still feels like it has so much more to give. Any suggestions would help I'm not exactly a gear head and I have lurked on this sub for some time and learned a great deal. Just looking for some direction on what would be the next thing I should upgrade that would greatly benefit the things that have already been done to this bird.
Supreme Member




Joined: Feb 2021
Posts: 1,211
Likes: 452
From: WA
Car: 1989 IROC-Z
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: BW 9 Bolt / 2.77 Posi
Re: Looking For some advice
That cam is on the upper end of what stock TPI wants, I think you'd benefit in the upper RPM range quite a lot by moving to a shorter runner intake setup like the Stealth Ram.
Re: Looking For some advice
Member
Joined: Oct 2015
Posts: 145
Likes: 12
From: The Peach State
Car: '88 GTA
Engine: 355 SBC, AFR 195 heads, Stealth Ram
Transmission: 700r4
Joined: Mar 2014
Posts: 4,553
Likes: 807
From: South Ms
Car: 89 Firebird
Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: Looking For some advice
If you have 2.73s or 2.77 gears it will feel sluggish. I run 3.73s and what a difference that made over the 2.73s that came in mine.
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rlamas
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Mar 30, 2012 03:06 AM





