by the way, about the p5x, i run one in my buggy, which may i add is my most favortie motor i have driven to this day, i have about 1 1/2 - 2 gallons of 30 odonells in it, and i still have an extremely hard time getting my ofna chrome top to pull it over. Get urself a blowdryer. But u will love that motor, i am going to get anopther one for when i get my truggy.
Give ur motor about 10 good tanks at about 200-210 degrees. This motor LOVES to run at 230-235. Very easy to tune, u should really only have to touch the high speed needle a little after break in. At about tank 9 begin running odonell 99 non turbos with odonell 30%, (use odonell 30% throughout whole break in process), but make sure to run 0d 99's, rb and nova plugs run okay in this motor, but od 99's seem to be the one. Goodluck!