I have read alot of threads on here about roller and flat tappet cams/ i have never had a motor with a roller cam, untill i bought my 2004 silverado, and i bought it used about 3 years ago, it was my first vehicle to have power steering and a.c., just stating that so you guys know how far behind i am, anyways im building a 2- bolt main 454 that is 30 over with stock unported 049 heads. The boat is a 18ft aquacraft shark with 12 deg casale the gears are i believe 18's, the boat will be used just for ski and pulling tubes for right now, (untill the wife makes more money hehehe) and it will only be used about 1 or 2 times a year, maybe three if were lucky. The question is, for this application is it worth dropping the money for a roller cam? I want a cam that i will get long term use out of, and not have to be adjusting valves and so forth.. So im between getting a mild hyd. Roller or a flat tappet cam and i have never built a motor with a roller, but i was going to get a retro fit kit that came with everything, just not sure which kit, and i do know that i should talk to cstraub about the morels, so im looking for a cam that will last a long time with no adjusting of valves and so forth, im not racing, just want a dependable cam , i was thinking if i went with a roller and i set everything up right it should last a long time, i hear of horror stories with flat tappet cams now, and thats all i have ever used so roller is new to me, sorry for the long post just wanted opinions or advise thanks..