I have a set of C4AE-G heads with the large intake ports and also a set of
C8AE-H heads with the smaller intake ports. I noticed that the smaller ports have much higher port floors so I am guessing these were considered medium riser heads vs. the C4 low riser heads? I plan to have CJ sized valves
(2.09/1.65) installed and do some port work so want to use the better of the two. Any ideas or opinions?