I picked up my heads today and got the results of the flow tests. I spent waaaay too many hours porting these suckers, but it was a learning experience and generally therapeutic. The valves are 1.90"/1.60".

Here's what a moron with a grinder can accomplish, tested @ 28" H2O:

Intake:
Lift - Stock/Ported
.10 - 58.7 / 63
.20 - 105.6 / 116
.30 - 152 / 169
.40 - 171 / 199
.50 - 181 / 211
.60 - 189 / 211

Exhaust
.10 - 51.8 / 51
.20 - 90.4 / 97
.30 - 106.8 / 122
.40 - 112.9 / 134
.50 - 114.8 / 143
.60 - 115.4 / 146

FWIW, not too bad for an amateur and better than what I had.