John, I read your posts on the other forum to the guy who is building the 312.  I am building a 312 to go in a '55 with a FOM.  This will be a driver that I would like to leave brand X at the traffic light. I have been leaning toward the 265S cam from Mummert (265 degrees advertised  224 @ .050"  110 separation .288" lobe lift  .440" lift).  I have some questions.  1) I have a set of ECZ-C heads.  Would I be better off using 113's with the bigger intake valves?  2) Would I gain anything by porting either head?  3) The block will be "zero decked".  Should I mill anything off the heads?  If so, how much can I mill without having to cut the intake?  4) Is this a good cam, or should I look at something more aggressive?  Sorry to be so full of questions (and other stuff according to my wife) and thanks for any and all help.     Butch

Butch Lawson

Manchester,  TN