Thread: Spark Plug Help

FIRST POST HAHAHA

Ok, I just bought a 97 GTP from a family member, mods that were already done to it by my uncle were 3.4 pulley, Custom FWI, 3in DP, 3in to 2.5in dual dynamax's (no cat/res or u-bend), 180 T-Stat, MSD coils, Taylor 8mm Wires, 1 range colder spark plugs (i was told), i might be forgetting something but i think i got everything.

i am doing some what of a tune-up to the car because its had about 6k miles put on it in 5 years, new engine oil/filter, new S/C oil, Spark Plugs, Smaller S/C belt (stock belt w/ 3.4 right now).

NOW my question is with these mods are the 1 range colder plugs ok or do i need to go 2 ranges colder? I read almost all of bluegtp91 3800 Modding Sticky but didnt really see the answer i was looking for so thats why im askin for help...

I have the stock pulley that was removed, and why is that? im have no clue about these cars so im trying to read up as much as i can

really? it has been this way since prolly 2002...

yes, it has...and it might be a 3.5 pulley because he cant remember what he put on it and i measured the stock one he gave me, i got 3.8. I couldnt get a good measure on the other one because of it installed but it def. a 3.4/3.5 pulley