proform rockers ?

I've had proforms on my cuda for 4 years now without a problem. I'm running .550 lift and stiff Lunati springs and I rap it out to 6-7000 rpm all the time. Cheap doesn't always mean bad
just my 2 cents worth

also I have had other proform stuff that sux like 2 rev limiters that were junk brand new

And I agree with this ^^^^^^

The problem is, there is so MUCH of an influx with overseas stuff now. You don't know if what you are getting is good or not. So naturally, since there is such a big pile of it, you will see more failures. It's the luck of the draw really.