Quote Originally Posted by SgtMarshal View Post
here is my opinion: I have an XP cam, ported heads, a full size intercooler and am running a 3.25" pulley. my car has kr when I go smaller. you will not be able to just buy one pulley and call it good, unless you are will to settle with a 3.5". you could probably run a 3.25" pulley if you did the headers 1.9 rockers and a methanol injection, but again tuning will be required.
Wow you have a xp cam ported heads and fsic and your kr rises if you go lower? Injectors are the same? Or you upgraded? Im running 2.8 no knock with the same cam headers and a gen v with ported heads..can't understand that one

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