Hung out this weekend at  Beuana Vista and had water,, talked to the owner of Cyclone speed and marine and got a lot of ideas on engine and pump setup so it is making want to pull my Drake Jet pump out for the new engine and a nice pump,, engine is 454 .,,, 4bolt,,, strong bottom end with alum heads comp came 11-550-5 with solids and a merlin single plan with a 4500 flange and a holley 1150 ,,,2 circuit.....wanting to got to about 10:5 on the pistons.... hoping to push my 21 ft elimanater day  cruiser a little faster

Okay I got the engine out and torn apart. Looks real goo ,,,no damage. Looking to go from 454 to 489 (don't want to bore 60 over yet) so this is my build as I see it now ,,,,454 to 489 with a rotating assy from skip white racing engines ,,scat 9000 ,6.3 scat I beam rods with 7/16 bolts and Probe forged 20 cc pistons should get me close to 10.00 comp ratio being that it is a cold water engine...top that off with skip white set up Pro comp 320cfm 115 chamber with some minor porting and chamber clean up rect port alum heads,,i am going to run a comp cams 11-550-5 solid flat tappet with 570 lift and 240/242 @.50 on 110 ,,top that of with a Merlin rect port tall single plane 4500 flange with a 1150 Holley ,,,now the big question is ,,what jet should I be looking at to replace my Drake unit on a 77 eliminator 21 day cruiser

Thanks mash on it for the recomadation,,the boat that I have is registered as being built by the Dandy boat Co in Indy which is the same place a John Drake got together with Offenhauser to build Indy cars,,I called Elimanater boats and they told me that they sold some hulls to drake to fit some of their units into the hull in 77 and 78 ,,but if you look at the hull I have ,,,a 77 double lift deck like yours ,,and yes. It's a tank