Edelbrock RPM Heads

There isn't much benefit in doing this type of porting unless you already own your Stealth or RPM heads. If you already have RPM heads and you don't want over 750 HP then this becomes a viable option. The reason being, any other aftermarket aluminum head that you want to make 750 HP with, you will have to port anyway. Take for instance the Indy EZ CNC 295 head. To get a pair of bare heads that flow...........

.100..........72
.200.........146
.300.........215
.400.........276
.500.........315
.600.........341
.700.........351

..........you will have to pay $2,625 from Indy. Well, if you already own a set of RPMs you get about the same flow for $900 less. If you don't already own heads, then the Indys become a better deal. If you want 800-900 HP then you are better off starting with a race head anyway and I wouldn't choose the RPM head.