Quote Originally Posted by SgtMarshal View Post
I currently have an XP cam with ported L32 heads. I want to do a more aggressive cam and valve spring combo, but not remove the heads. I was thinking about doing an XPZ, but don't really wan't to take the heads for machining, so I'm considering other cams such as the S2X or S3X and maybe an NIC. what do I need to consider when evaluating a cam for the heads I have?
Curious to know why do you want change cams? Do you feel that you maxed out the xp? Probably not .. I would stick with your setup plus the xp cam idles wayy better then the xpz... And since you really dont want to do porting for heads.. You should stick with it ... Goin bigger isnt always better... Be surprised how much power you would make with that cam And surprised what those cams wouldnt make at the dyno..lol