I have just recently changed from home ported edelbrock heads to Trick Flow heads and from a hughes 234/238 roller cam to a custom 237/243 cam on my 410 stroker. Horsepower went from 392rwhp to 425rwhp and the revs were all done before at about 5800, now it makes good power all the way to 6400. The torque is slightly down on maximum but the torque curve is very flat and holds on for at least another thousand revs.
