INDICATORS ON 4AGE 20V BLACKTOP YOU SHOULD KNOW

My 4age 20V is functioning way as well prosperous and offers black smoke within the exhaust. What i also noticed is actually a vibration at 3/4 throttle to WOT with about every single RPM. Would not seem flywheel related imo, whilst i had that issue on other vehicles and it sounded distinct.Regardless that the Blacktop head encompasses a additional