Ported 596s

Yeah, they flow right with box stock Edelbrocks.. for the most part, only with a smaller valve.
Valve Coefficient numbers are real good too.
I don't have exhaust numbers with me, they're on computer at the shop... but seems to be in the 163- 166 range.

Int: 1.940 flow @ 28"
.050 39.9
.100 71.2
.150 104.7
.200 133.0
.250 160.3
.300 184.3
.350 206.0
.400 224.2
.450 238.4
.500 240.6
.550 242.6