Disappointed magnum head flow numbers....

Listen, comparing flow numbers you found on the internet is like writing food reviews by reading the menu.

#1 no two flow benches are the same.
#2 no two operators are the same.
#3 no two weather conditions are the same, and this matters because flow machines do not suck, they cause atmospheric pressure to blow.

Notice I didn't even get into heads, valves, cam dynamics, etc. If you're reading flow numbers on the internet trying to decide what heads are best, you're not driving at a level that it will matter.