Okay I got a 12a turbo with a EFI system on it. I guess the major problem with this is I am familiar with blow through carburated. Now I don't want to switch to carburated and that is simple I already have the EFI. Okay my question is I'm putting the motor in my 81 rex which was just the 12a stock engine. Just wondering which engine management system I would need (halltech or a ems or a michrotech or a aem unit )to buy to get optimum power from my engine, becuase I want this thing to fly. Also got a boost controller on the way so that'll help things out as well.

 

I would imagine a fuel only unit like the microtech mt-4 would work great since you already have the 12at dizzy with boost retard. It also costs half of the other EMS's.

 

Check into MegaSquirt too. Fuel only, and MUCH cheaper...