[Mus408]

Amazing how things change with time! I remember when a 230/240 degree cam was rather wild for a 400+ cube engine...remembering the old RA IV Pontiac engines.
Depends on how wild a combo you can tolerate down below 3000 RPM,for street use. I have found a 231/239 hyd. roller is working well as an all around cam for a 427 stroker. 234/242 optimum.
I tried a larger 242/249 hyd. roller and it was giving 9-10 inch idle vac. and a bit rough for use below 2000 RPM.
Look how small the duration is in some of these 400 inch LSX strokers,and they're making 550-600 HP. They have great flowing heads to make it work.
Use a good head and cam for RPM range of power.