gze's will idle ok even on fmic if wiried and plumbed up ok
its only when made into rwd setups people dont do the plumbing correctly or the wiring is when it causes problems
i have wired up afew and after abit of adjustments i have gotten the things to idle ok as long as the plumbin is sorted out because once u modify the intake u have to redo the hoses so once u hook the hoses up as they were then it should be ok