1991camaro_rs

So off topic but i figured i would ask you guys since you guys have good advice anyway, buddy at work has an 89 305 TPI camaro, 5 speed, trickflow heads, cam, headers, and a vortech blower which he claims to be on 10=12lbs of boost. He claims to be at 380-400 whp does this sound right?? It does haul ***, but i just cant see 400 at the tire, maybe im wrong. Let me know what you guys think, he is going to race someone's vortech foxbody from a shop down the road 2moro ill see if i cant get a video for you guys.

3.8redbird

iTrader: (3)

Depends on the head, cam and tune but I see this as very doable.

1991camaro_rs

It has trick flow heads, i cant remember the name of them i do know they are 1.94/1.50 heads, with a nice cam in it. It sounds awesome for a 305, probably the best sounding 305 i have heard.

93 LT1 Vette

I built a non-roller 305 motor many years ago for a buddy. Flat tappet .480 lift 230 dur Comp cam, with a 600 cfm Holley, RPM airgap, flattops and iron 305 S/R torquer heads and it put down 300+ to the wheels thru a 8.5 inch 10 bolt and turbo 350 tranny in his Nova. On a 100 and a 2800 shall, it ran 12.30's at 114mph. I see no reason why your buddies 305 with a quality roller valve train, couldn't put out 400hp to the wheels especially on 10 pounds of boost.

96capricemgr

iTrader: (1)

12psi is approaching double atmospheric pressure.

That much boost and aftermarket heads those numbers seem reasonable.

3.8redbird

iTrader: (3)

Those are smaller TF heads, likely the 175-185 version but they still flow great for such small valves. Depending on the cam and cr NA I could see high 290s to low 300s due to the tpi intake.

It will make 400rwhp UNDER 5500rpm and have some awesome tq around 28-3300rpm.