Our 1st test factory Magnum heads

Being the rookies that we are, we've never done any work to the factory Magnum heads. Finally the chance has arrived and we are working a 360 for a '96 pick up. What follows are the flow figures designed for the engine using a cam in the .500" lift range.

Lift.............Stock 1.92............Ported 2.02

.100..............64........................71cfm
.200.............131......................143
.300.............182......................201
.400.............217......................243
.500.............215......................260

I'm not really impressed with the heads and would rather use the 360X head. What the heck, it was a chance to experiment.