Not at all suprised you got more HP out of the new Indy inline Xram than the one patterned after the old original Max Xram, I can run right at 2 tenths quicker with a Dominator and Indy single plane than with the Xram, normally on the Xram you need to richen up the throttle sides of the carbs a bit to get a more equal distribution. The old Crossrams aren't the fastest, but the look can't be beat.