Well got the new clutch in, McLeod dual disc, with the aluminum flywheel. According to the bathroom scales, the steel setup weighed around 65lbs. The aluminum weighed in around 37 lbs. According to Mc Leod the aluminum is closer in weight to the original clutch. The clutch is really smooth and grabs really well. The RPM's really shoot right up there. I'm very happy with this new setup, and the way the car revs. Hoping to pickup a couple of tenths when I get it out to the track for some test and tune. Kevin