Speed2

I've finally come close (hopefully within the next two months) to having the following items installed on a single cab 2008 Gmc Sierra :-

418 l92 block (9.6 compression)

D1 Procharger @ 14 psi

4L80e (Level 5 Flt Trans)

With the power being put to the ground, am not quite sure as to what would be the best combination, was thinking 20 Inch rims with 305 semi-slicks, any other suggestions?

Thanks for any input

quicksilverado

iTrader: (8)

Off topic. Will a D1 move enough air to feed a 418 ci engine? It may run out of breath around 8-10 psi. I run 18s with my 346, t76 at 7.5 psi on the street and it works great with a plan street tire. It breaks traction some, but it can be managed with by pedaling the throttle. I do keep about 400-500 lbs of weight in the back though.