I'm having real difficulties with the belt getting thrown at high RPM. That flimsy semi-circle bracket just doesn't keep the pulley in-line with the flywheel. That metal is fatigued and I'm thinking of pulling it and running a bead or two of weld to strengthen. Unless someone knows of a aftermarket replacement that's more robust

Seen this problem on a few cars. Every one of them has been the pulley on backwards

I agree with the kabinetmaker ! Pully not installed properly.

I had that problem on my car. I fiddled with the position of the alternator, and was eventually able to wiggle it around to the point where it didn't throw them any more. I believe there was some fore-and-aft slop in mine, but I also think that was from wear.

--DD

Check out this action photo. Just coming off rev limit in second gear and hard on brakes. It threw the belt on this turn 5 out of 6 runs.

There's your problem!

Your drifting and the belt wants nothing to do with it!? It's rebelling.

You need a Corvair belt!