The past month or so my car has been missing bad up top, after like 4500 RPM. I changed my plug wires and checked the belt tension on my blower belt...my question is: Is it possible I am mistaking my clutch slipping up top only for a miss? Have any of you had a clutch only slip at the top of the tach, what it feel like? I still have to look at the plugs to see what they look like, cap and rotor are new also.