hey i am new to this forum i have a 01 tahoe on 35's and 4.88s complete bolt on and nelson 93 octane tune with 3200 stall and it ran a 10.2 in 1/8th i now have prc 2.5 5.3 heads 58cc chamber and 224r cam what should it run now and how much rwhp should it be making?

 

Where were you running at? I had very similar mods except I was on stock tires with 3.73 and was running 9.5's at the 1/8. I'd guess you'd drop maybe 1/2 a second and be around 400 hp at the crank with new cam and heads

 

ware shoals south carolina and it was probably ninety degrees