Well....you might try some engine flush? Maybe some "smutz" in an oil passage? If you use that stuff, follow directions EXACTLY and only idle the motor for maybe 5 min. & replace oil/filter.

70 Roadrunner convt. street car 440+6, NOS, 4-spd, SS springs '96 Mustang GT convt. street car '04 4.6 SOHC, NOS, auto, lowered "Officer, that button is for short on-ramps"