get ahold of ryan,he has set up several megasquirts on mr2s...i'm sure there is a way to control boost and knock and everything else involved...from what i have read the major problem with the 3s is a "noisy" analog timing signal...but there is a whole section of mr2oc dedicated to ms...a lot of people use the ford edis for ignition with the ms and from what i understand the guts of the stock ecu can be used to trigger it...if not a trigger wheel and sensor can be installed at the bottom pulley to trigger it...