Working on 2011 Apex XTX I bought off season. MPI stage 1,shimmed , BOV @10 lbs. Has power commander and voltage clamp. We cannot get this thing to run well at all. AFR's are kinda all over the place. Wide open throttle is good 11.2 . But light cruise , mid throttle is a mess. I've got Scott from Modfather helping me with the tune and it's fighting us big time . It does not push oil or coolant and the leak down was good. Today things got worse ! After a few short WOT pulls it started pushing oil out the PTO seal . Has anyone ever seen happen before. Scott said he has never seen one fail before. Not looking good.....