(if my pusher prop set up spits out 42 ounces thrust and 79mph static pitch speed , then how can an edf with only say 25 ounces thrust but a greater pitch speed be faster?)

I've been building and flying my own pusher prop planes for about a year and am pretty good(I think). I started with a zagi then eventually built my own version of an electric ddust with a pusher prop.this thing is fast (maybe 85-100mph).

my question is this, which is faster a pusher prop or edf. my set up is this mega 16/15/3, 60 amp phoenix esc, apc 5.7x3, and lithium polymer 4s2p(irate cells 10c- 44 amp max). this gives about 12 min with throttle control, and high speed fun.
I don't want to go higher then 40 amps, because I,m pushing my 16/15/3 as it is, and I want to stick with using the 4s2p pack or my other 3s3p(30 amp max draw).

I have a kyosho t-33 ducted fan how would this fair with the 4s2p and 16/15/3.
any help would be great as this electric ducted fan stuff Is all new to me