[hydrofam]

Okay so i know the k20a2 is the desired k20 engine but its like 2-5k for the mtr, so i looked around to see either if the k20a is better or the k20a3 is better. Just so i know which mtr is worth buying with out putting more money just to withstand the boost.

Is the a3 internals weaker? Is the a1 internals stronger than the a3? Should i honestly just save 3k for the a2, if both a1 & a3 are really not worth it?

Also my power goals are approximately 270-350 just to have fun in a street car.