Disappointed in my 383 on the Dyno

Professor Fate said
329 at the wheels is about 396 at the crank- that ain't bad. Need more info on current build before can make legitimate recommendations.

Timing is set at 37 wot with full msd system.

mygasser said
add a stroker kit, that'll get you there. oh, and more cam too.

should I keep the heads or sell the performer rpm kit and buy a new top end from trickflo or a higher flowing head? Would it make more sense to just have these heads sent to a machine shop and just upgrade the cam before doing a stroker? I suppose it might make more sense to do it all at once