Check your crankshaft reluctor wheel!

I have a 5.7 based stroker in my drag car. It started getting very inconsistent. We took the motor apart and the bolt on reluctor wheel had come loose and you could move it 5-10 degrees! New reluctor wheel will be bolted in AND tack welded! If you plan on going over 6500rpm regularly like I do, I would highly suggest you tack weld your reluctor wheel to the crank when you have it open.