Some ported Eddy head pics...

Flow#'s at 28" and 4.030 bore:

lift intake exhaust
1 70 52
2 154 112
3 224 151
4 272 190
5 295 205
6 299 218
7 305 224

That engine those heads were on made 621HP @ 6600rpm and 541TQ @ 5100rpm this morning with the dominator.
Pump gas 414, solid roller cam, 10.9:1, TTI 1 7/8 x 3.5" header.
Brian