teej281

4.30's or die. Nobody...and i mean nobody that ive seen has ever really put 4.56's or higher in a street car cus thats just insane. I think i wanna go 4.30's now that i have 4.10's. lol dont fear the gear...unless the gear is 4.56 or above.

PaintballFreak

Yesh I have this book as well. It's well-worth the $20.

Trays GT

I know for a fact that a 2003 GT with the factory 21lb injectors, and stock fuel pump and system is still efficent enough to safely handle a Fully Bolt On, Ported Heads with larger valves and Stage 2 cams with 100 shot of NX. But not saying that its something that you should forget about and have in the back of your mind as a next to do but it will handle that. But that would and should deffinately be the max or a fuel system upgrade should be your next modification

PDowdy1

so go with a 4.30 rod and pinion set?

Trays GT

4.30's are good if its a dedicated drag car but i think it will be to much gear for a street crusier unless you gonna be running 28" or taller tires all the time to keep rpms down, but 4.10's to me are perfect, but 4.30's has to be funner lol

teej281

I agree that 4.10's are a great all around gear. And if its too much for you, tire it down with some 28's or something.