I'm new to the jet boat thing this year (21' Omega Open Bow, jacuzzi jet) and wiped out some lobes on the cam (Hydraulic flat tappet) a few weeks ago. I'm going to use this as a chance to upgrade. I have a BBC (468, mark IV, 2-bolt main) with a set of ported (bought them that way) large oval port closed chamber heads (milled to 96.4cc) with slightly dished pistons on there now. I also have a set of stock 781 casting (extras), a couple extra 2-bolt blocks, and stock forged crank. I have the opportunity to upgrade to Manley rods (+.250"), 30 or 50 cc dome forged pistons, roller cam and lifters, rev kit (the cam included is a new .726"/.720" lift 284/290 @ 50 with a 108 LSA), Weiand Team G intake, and a set of Jegs Aluminum 119cc rect port cylinder heads (2.30" intake, 1.88" exhaust valves) for a very reasonable price. These are used, but I am going to have all of the parts checked out at the machine shop prior to purchase to verify that the are all sound. The questions i have are: -Has anyone ever used these heads? feedback on them? -Max compression ratio for aluminum heads on this setup? -What is the minimum lobe separation angle LSA for logs vs. headers? (I think the one included is too low from what I have read) -Any other info that would be useful would be very much appreciated! Thanks!