new to these boards and the 4ag but im not new to weber sidedrafts. holley regulator is good. but 10ps?? 2.5 to 4 psi sounds right to me. i think you can keep your fuel pump if you run split the line at the regulator and return it to the tank. that way you dont beat up on the diaphragm on the regulator. other than that... youre gonna need to jet em and tune em. get a synchro. ive done the sidedraft thing on a 20r/22r hybrid and it worked great. good luck.