My 4age 20V is jogging way as well prosperous and provides black smoke from your exhaust. What i also seen is a vibration at 3/4 throttle to WOT with about each and every RPM. Won't seem flywheel related imo, even though i had that dilemma on other automobiles and it sounded unique.The Silvertop con-rods are really solidly crafted and with bolts we… Read More