Currently i have a 454 bbc, 030 over, trw L2377 pistons, isky cam .565 lift, 232 dur @.050, harland sharp roller rockers, large valves. On top is a holley 650 DP, edlebrock tm2-0 intake. Intake is 2000-6000 rpm range and built it 1977. I have a fresh rebuilt 12jb berkeley with b imp. 9 begree wedge, ride plate. All this is in a 1976 sleekcraft 18ft. It ran out at 4800 rpms and 65.9 mph on gps. would like input on a good intake and was thinking about an 850dp. Any advice would be helpful. Thanks