So today I installed my trac bars and immediately following my truck now stutters with light throttle heres the catch though it doesn't do it on pl00 on my adrenaline only on the levels above it. I am running 6x0.18s and raptor 150. My question is,could my vp be on its last legs I am also running a single disc south bend but it slips when the turbo lights(s366).or could it be related to the trac bars. I have been having issues with my overflow valve because the truck loses prime parked uphill and it's hard to start. Thanks in advance!

 

On the priming issue have you tried tightening the bolt on the back of the head? Or replacing the washers on either side of the banjo bolts?

What Fuel pressure are you seeing?

 

I am seeing 17 at idle and 15 at WOT and I thought it could be my return return line/check valve.

 

I don't think its fuel related, your stutters. I think its probably clutch related since you said it does slip. Its probably the slip and grab that is making it feel crazy.