Hey Ed!! Dennis Greffard ported mine over 10 years ago now. It's prolly an appx 1990's model. Full woods port, It was the first one he did, but he used Ken Dunn's numbers. Lakeside Andy honed it and added a set of rings a couple years ago. It may now be ciose to where it was, which may well have been around 13 horsepower.
I still have a few saws that you did for me..but the Dolmar 5100S, which may have been the first or second to be woods ported, was stolen, as was the near race 372 that you did for New York Ken. He sold me another 372, and 357 both ehp's, and a 200T--which was also stolen. The little prick pleaded guilty, and apparently did some jail time, plus has to pay restitution, which he will find out about at the sentencing...I included the porting values in his debt...which will be $2700....who knows if he will ever pay up.
Reg, I don't think Donny does full woods porting for that price. Walker's never did. I had a couple of their saws, which were fine, but not quite like the full deal, which is decking the cylinder to improve compression, and reduce squish, widening the ports for more flow, and enlarging them a bit for increased port opening duration, which includes working the transfer ports as well, and sometimes a bit of piston work.