Well I decided to not go with IC or WI for now. THanks for the info!
There a few maxes running with 2.87 pulley fine, but not with the 400 RPM more limit.
I would rather be safe than sorry, so I will run the 3.33 for now.
I have 370 injectors and a walbro for fuel though.
I am gonna be running Apexi EL EGT, Apexi EL PSI boost, defi fuel pressure, and a defi oil pressure.
Maybe wideband lm-1 later.
I am thinking to sell my 60mm apexis to get all defis though. rx7 store sells defi right? :>