Have you been tuning the stock setup?
My buddy wants me to tune his 5.3, won't hardly spin the tires. I'm going to try playing with the cam phase tables after we get more than 4* of timing in it :rofl:
No, I left mine stock. It's not to shabby stock either, it will blow the tires off from a dead start and will chirp 3rd wot. It's really a handful in the rain already, I have to be careful passing even at 50 mph or it will blow thru the tires. I do have the 6l80e so that helps I'm sure...