Jelloe again. For some reason whenever I hit about 3200rpm, driving or in neutral, the engine shakes pretty bad. But at idle and anything under 2000rpm, its just fine. What gives? Also at about 55 mph when I hold the gas pedal down to maintain 55, I feel a vibration in the pedal, and maybe the drivetrain. Kind of stops and goes in a regular pattern. It sucks cause I cant open it past 4000 rpm. Do you think it has anything to do with needing to adjust my valves, because thats what i'm doing today, and they need them pretty bad!!