I have a dodge 360 with 10.1 compresion, ported J heads, crane cams flat tappet 284 duration on intake and exhaust with a .480 lift Edelbrock torker intake and a holley 600 cfm and standard vulume oil pump. Do you think this engine is close to making 400 hp? Should I use a bigger carburater? IF i put 1.6 roller rockers on it would it be closer to 400 hp?