Yeah I have one. Avoid it like the plague! It was undersized to the point it wouldn't go on after heating and using an install tool. It began to curl up the metal inside the balancer. It's also 1/2" longer overall, screwing up your pulley alignment. Also the pulley bolts are tapped out to like a 24 tpi pitch, so you'll need new bolts. And a 1/2" longer crank bolt too. It's free for the taking.. Good gawd
Just got a Pro-race, haven't installed it yet but the quality is impressive for the price. And it's virtually the same pulley offset as stock, well okay it's 5.5 thousandths longer. I think that should be fine.