You call one tiny vacuuum tube a "mess" ? (if you don't think so, then check the pics of my 331 in the photobucket link below and see if you can spot that huge vacuum tube) It's not only a fuel saver, but it also enhances the performance as well, the two go hand in hand, contrary to what you may think. Now as for the heads, yes, they'd be an upgrade, but not on a stock 72 bottom end. The pistons in your motor will have Grand Canyon sized dished centers and an 8 to 1 comp ratio with 60 cc heads. As for the cam, you've got a hyd cam there now, but not a hyd roller.
