[Bill's88]

I just bought an 88 with a mostly stock 302 with some pretty good bolt on stuff.

Cobra Upper/Lower
Cobra ECM
Cobra Fuel Rails
24 lb Injectors
65 mm Throttle Body
73 mm Mass Air
155 lph Fuel Pump
MSD Ignition System
March Underdrive Pulleys
3.73 Gear
Super HD World Class rated at 330 lb with a Zoom Clutch

Anyway, what kind of difference will I see adding a set of GT40 (non p) heads with 1.72 roller rockers. I may even go with a cam if I can get an idea of which one would perform the best with my setup.

Thanks!
Bill

 

[EagleAutosports]

If you swap just the heads alone, you'll gain 20-25 hp easy, you'll definately feel the difference.

 

[ihrdthattoo]

gt 40 has aluminum or steel you for sure want to go with the aluminum and you will see a big difference

 

[Masshole]

Get the cam too, the two work pretty well together....I did cam first thing. Not a huge difference with other parts stock, but a huge difference with the cobra intakes!

 

[then42]

I just recently installed the gt40 y302 aluminum heads with crane 1.6 rockers, trick flow stage 1 cam and noticed a huge difference in performance.:bigthumbsup