Yes sound good. Yes the rollers rockers work better. On my 305 I put stamped steel roller tipped rockers, by cran cam's because I had them with some parts I picked up in a deal. They work better then stock. I did the chrome thing, I will say this temps under hood and in the motor will run higher, oil will brake down faster with the chrome part on. A good set painted parts better or a alum part better for temps & oil.