[flatheadmurre]

For a F3 with EAB cam and aiming for torque and not more revs i would say compression is what you want instead of large ports.
If you use it for hauling running it hard the higher compression can be an issue...so depends on what you want it to do.
Cleaning up the intake and exhaust ports never hurts...but any serious porting isn´t what you need in my opinion.