Sam:
Those are some good suggestions, all of which I had heard before, but never tried (except boxed arms). It's odd, though, that I was talking to an LS-6 owner/racer this weekend about this very thing, and he has BIG TIME problems as well. Runs an air bag, tried No Hop bars (DID NOT HELP!), and has poly bushings and boxed arms. He HATED the No Hops, as he had to drill his housing, and he described them as a waste of money. I believe he still has the air bag/boxed arms, and he ran a
12.80@110, but still hopped a tad. Seems worse on stick cars, probably due to the amount of "shock" to the tire?