I'm not sure, but I think ProMaxx are 1800 fully assembled. I know, I know, but the cheapies edge so close in price, it is something to think about....
This is the second time you've recommended the pro Max on this Speedmaster thread. I know when I called Speedmaster they said $1, 200 or so for fully CNC fully loaded heads..
Have you found any other flow numbers or comparisons from the pro Max heads to the Speedmaster heads? Is there a pro Max thread that have some comparison numbers for discussion?