My old stock Wenzlers --
Intake
.100 68
.200 135
.300 184.3
.400 225.2
.500 265.4
.600 286.1
Exhaust
.100 66
.200 119
.300 155
.400 185
.500 192
.600 195
Just for reference...My new highport heads flow 295cfm @ .400 lift.
If you have the right guy port the Wenzlers, they can go 370cfm at .700 lift. Jim Robertson (link in my signature) does very nice work with Wenzler heads.