Does anyone know where i can get an ecu and wastegate from an 89 quest

I was hoping someone would have a good reccommendation on where to buy injectors for my Magna. I was thinking of going 72#, low impedance. Will be running a 16g now, but am planning on an upgrade at some point.  Also, going to run an SDS 4-E if that helps. thanks.   terry

I've wanted to do this for quite some time and I finally had some time on a fairly warm day to try this out.   Test conditions: Air temp. ~45°F Humidity ~50% Air pressure ?   Car: The important engine components are basically stock (12a turbo @ 10/11psi, stock manifolds, new stock head w/jv, stock intercooler & pipes, etc). Only thing that is not stock is 3" *DM exhaust and Blitz BOV. Engine was warmed to 1/3 on temp gauge.   Equipment used: Metex Digital multimeter w/ freq. measu

Does anyone have opinions on the Holly/MSD pro-jection 4 ECU? Is it compatible with our cars? What's the positives and negatives with this system?