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9

99PontiacGTP

New member
Just bought a 99 GTP and the guy that had it before did a few mods.

3.3 pully
level 1 ZZP cpu with cat delete
3 inch down pipe
msd wires
fenderwall intake
gatorback belt
180 t-stat
i think colder plugs
cat and resonator gone
and a butchered up exhaust with 3inch mufflers.

I am adding headers when i replace trans.

My question: Can I get away with that pully or should I get a 3.4?

Also how much KR is absolutly too much? Obviously 0 is best but what can i get way with before it gets dangerous?
 


I would pull the heads and check the tops of the pistons none of the mods listed would let you run a 3.3.
 
You don't have to pull the heads to know the condition of the pistons...granted the guy prior didn't change the plugs after the pulley swap. If he didn't...yank the plugs...if the tips are gone or bent...then you have bottom end issues already.

3.3" is too small...try a stock pulley or a 3.5"
 


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