I've got a factory Hardin Marine 5.7L 260hp SBC in my jet, with 9:1 compression. RPM's at wot is 4400. The boat is 16ft. Right now it has thru hull logs, but I have ot twisties that will go on this year. What parts would you use, without having to do any machining. I'm thinking alum heads, cam and lifters, intake, but which ones?:idea: