ok i am building a pinto turbo so far i am so close to finishing it

although people are telling me i need a megasquirt ecu and different injectors
if i need them i need them no point half done jobs the only thing is i dont understand how to choose the right ones?
this is what i need help with
so far im running a stock injection pinto until i can afford to drop in some cozzy pistons and conrods
can somebody please help me