I sent a set of "Race" Medium Riser Ed Pro Ports to a new customer. In talking with him prior, I could tell he had been around the block at least twice. He asked me what they would flow, knowing that benches and methods vary. I asked him to just trust me and try them. He said he would, so we did them. He owns a Superflow 600, so I suggested he flow them on his bench after he looked them over. I prepped them for .700 lift. He sent me his findings. 2.250 valve on a 4.310 fixture, 28".
.300 232
.350 250
.400 280
.450 305
.500 332
.550 345
.600 360
.650 365
I thought I would post these third party(flowed by customer) numbers, since people always ask about numbers. These quit at 370. I could valvejob them differently and make them go about 15 more at .800-.850, but the application didn't warrant that. Exhaust went 266 up top. These are about 15cfm better than the "Street" version that retains a MR location. This port requires some intake work, pushrod tube relocation, and offset rockers, but still a "Medium Riser" style head.