1600-1900 Vibration???
Just bringing my 1994 Z28 back to life after 3 kids (ie almost 8 years of sitting). Like the title says, there is a weird engine vibration low in the RPM's (while the car is sitting still and in neutral). When I was younger and dumber, I put on an underdrive pulley...do you think this is causing this? Or could the flywheel be the problem? Thanks ahead of time!!

