alright. im gonna be puttin my xp cam in a month or 2 and im seeing mixed things on either 105s or 130s. i emailed paul at prj since he will be the one tuning it and he said 130s with a double roller is recommended because he see's alot of cars with valve float issues. I just dont understand then why most people only run 105s and are fine. im just torn on which route to go.