Just got a GTP, have a few questions for the experts

[superv6]

Well before bio even says anything ur buddy probably woulda been faster on a stock pulley with a tuned pcm. The problem is if u start droppin pulley sizes u increase the risk of having too much kr or knock retard where the sensors notice too much knock in the engone and actually retard timing making even less power. Anf yes if u run a 3.0 pulley on a stovk gtp it will pop. If u wanna run a pulley smaller than 3.4 I would say u need headers and more supporting mods. Plus if u just want a quick dd what's the point. Just start off slow and work ur way up. I'm tellin ya bro. U won't regret it

[LSXHP]

Well before bio even says anything ur buddy probably woulda been faster on a stock pulley with a tuned pcm. The problem is if u start droppin pulley sizes u increase the risk of having too much kr or knock retard where the sensors notice too much knock in the engone and actually retard timing making even less power. Anf yes if u run a 3.0 pulley on a stovk gtp it will pop. If u wanna run a pulley smaller than 3.4 I would say u need headers and more supporting mods. Plus if u just want a quick dd what's the point. Just start off slow and work ur way up. I'm tellin ya bro. U won't regret it

Interesting.....That does make sense...but if I had the PCM tuned do you still suspect I would get KR? He offered to just give me the 3.25 cause he still has it sittin in storage from yrs ago. I do plan on doing the T-stat,cai,PLog,DP(No Cat),plugs,wires. Would that 3.25 still be overkill?

Thanks again

[blueguy]

Interesting.....That does make sense...but if I had the PCM tuned do you still suspect I would get KR? He offered to just give me the 3.25 cause he still has it sittin in storage from yrs ago. I do plan on doing the T-stat,cai,PLog,DP(No Cat),plugs,wires. Would that 3.25 still be overkill?

Thanks again

Yup. 3.25" is Cam, Intercooler, Rockers, Headers Territory...