35th camaro

drove the car for 500 km everything ok went got it tuned and on the way home noticed a vibration at 2100 to 2300 rpm, goes away before and after, can do it parked so i know has to do with motor, new motor and all balanced, also new zoom aluminum flywheel and kelvar clutch kit, i know exauste is close to things , but does not feel like it, feels the same as when i had a out of balance drive shaft could feel at a certain speed, but this is rpm. any sugestions?

Jimbo'sZO6

iTrader: (1)

Did you have the clutch, flywheel, pressure plate zero balanced as a unit?
If not, that is where your vibration coming from.

Jimbo