Re: Oil Pressure
When you are accelerating and you notice this, is the motor fully warmed up? Has the engine gone through a few heat cycles?
I know in my stock L-31 vortec truck if I have to accelerate moderately fast the oil pressure will go from 60 to 40 when it is still not warm enough.
Does your temp gauge read at least 180* when this occurs, or is the temp lower?
The oil pressure picking up on deceleration from a high rpm is cause from vaccum and possible warn rings? I read something about that not too long ago, I know on race engines that do not use vacuum pumps after going wide open from 6k to 7k rpm and back to closed throttle can cause too much vacuum and throw rods and so on, my cousin's dragster did this when before they put vaccum pumps on all of their motors.
The only Mustang I'd ever own is a Fender.
'68 333" Camaro
'14 5.0 Mustang