I just got the car back together and I started it up on the jack stands before I took it down and i have a problem. I switched over to a SMFW with a Centerforce Dual Friction clutch. Also while i was in there put in new AC Delco Master and Slave cylinders. A real quick background, I got the SMFW machined down and after it was done the machine shop told me that it was .020 thinner from the crank face to the clutch face than the DMFW. They advised a flywheel spacer, so I went and bought a .025 shim to put in between the crank and flywheel to solve that issue. (Dont know why if they took off .090 it would be .020 shorter than the DMFW, it was a new FW) NOW, the problem i have is when i start it up and push in the clutch and it gets towards the bottom of floor it will make a ting ting ting like something is hitting and the damn thing doesnt go into gear to easy. WTF did i do wrong??? I am in dire need of some help guys please!!