I would have to agree, trying to feed a 540 with the Eddy heads even with some porting is not going to be money well spent. My best guess, that on the drag strip, porting those heads on a 540 maybe a tenth in ET. Spend the money for a CNC job on a better set of heads.
You have a point if the OP is wanting a lot of power above about 5,000. But up to that point a small port head on a 540 will be superior in torque output where this deal will want it- 2800 to 4000 maybe? Having run a 535 with ported 906 heads, i can vouch for the torque!
