I took the truck to the dyno today so I could get a base line before I do the 90mm TB conversion. I haven't done anything since the last dyno, but the new tranny didn't have many miles on it when I took it last time. I guess it is broken in now. I also think I had less belt slip today which should account for some of the difference. Heads and cam should be ordered by the end of next week also so its only going up from here.

My old numbers were 437 and 488.

Today it put down 464 and 518! :devil:

What are your mods?

LQ9 6.0, Radix, 3.0 pulley, nelson tune, K&N FIPK, 180 T-stat, MSD wires, LT's, true dual 3" W/ high flow cats X pipe and dual 18" magnaflows, and a fully built 4L80E w/ 2800 stall.

Thats awesome! Man I'm getting excited to finish my truck now. :)

wow... great #s man!
what H/C combo are you going with?

I am going to go with the AFR 225cc heads and the cam is still up in the air right now...........any suggestions?