2BAD4U

So I'm mind boggled. When I first bought my boat 00 Baja h2x it had rebuilt low hrs. 509 Sep forged pistons, scatt rods and Arizona speed and marine camshaft M1 4lbs and stock heads. 26 pitch worked over by I don't know who... Labbed prop. Bravo 4 blade. Boat did 72mph @ 6,000ft elevation. So I put on a smaller pulley 6.5lbs boat did 75mph at 5,450rpm and running wide band at 13.30 lean.... Well I sold M1 bought M3 went out and tried test run on 5lbs. Blew head gasket between 6 and 8. Boat seemed to be flying. Didn't check rpm or speed. So while I was in there and heads off. I thought why not throw some aluminum ones on. So I found some procomps. Through them on with mls gaskets along with roller rockers. Well, with bigger blower and heads I bought a bravo 28 off shelf labbed prop. Went out tuned it on 5lbs. 70mph 4,700 rpms roughly. So I said okay... More boost... 9lbs here we go... Tuned it to 12.6 afr 68mph. I got pissed ripped heads off bought afr 315 had milled to raise compression. Did leak down test 8 to 10% compression went up from procomps heads of 110 to 145 lbs in each cylinder. So new afr's M3 9lbs 12.6 afr and 34* timing 72mph at about 4,900 roughly. I'm flipping lost. I just ordered smallest pulley. I'm going big or going home. Is this 28 junk? Would it hurt me this bad? Id try my old 26 But sold it like a idiot.... Help me please!

bbladesprops

Call me if you desire.
I think we can cover much more ground with a phone discussion.

Brett