On my bench, and both equipped with 2.25 intake valves, cnc345’s flow about 15-20cfm more than cnc325’s………and that’s only at the higher lifts.
I would expect at 572” the added port area will be as much of a player as the increase in flow.
The exhaust ports of the -1/345’s are quite a bit bigger and flow quite a bit more than the EZ/325’s.
