low or high resistance injectors?
 

Since the Microtech doesnt care (as long as either pair are matched resistances) and RC Engineering has the same prices for either resistance values (for 750cc ones) which ones should I go with? I was going with peak and hold low resistance ones. Something about less amperage draw, right?

6 of one, half a dozen of the other. :) Unless you are planning on running more then 4 injectors on each bank it shouldn't be an issue.

So 4 low resistance ones should be good?

Yep.