Billm2004

Good luck and have fun with it! I know i do!

Howling

When you say big is it the 66 or 71mm Silver Bullet?

BigTXDually

I run the SPS 66 from II and I also have their 90Hp injectors and a stage 3 pump, my truck is pretty big but it still lights the turbo very well and its still in the 13s in the 1/4 mile. I blew my head gasket after 200,000 miles but thats not bad considering how hard those miles were ( racing/ towing / and weather from 100+ degrees down to -40+ degree weather ). I would suggest installing some head studs too while you are doing this. Its not 100% fool proof as proven by mine (yeah my head was studded and still blew the gasket) but it definitely helps lower the possibility of blowing your head gasket.

desertchecker

heck I ran 13.3s with almost a stock truck and a 62 @ 511 RWP 975 ft lbs TQ