You could also swap 5vzfe in it. If you Google 3.4 swap 101, there should be A LOT of info on Yotatech about swapping in a 5vzfe.
are you planning to just drop it in or are you going to swap a 5speed in?
the 2.7 imo is a better engine ^
I also like the idea of having a 4 cylinder engine.
Also, out of curiosity, what all went into swapping the coils packs to the distributor? Just bolted right up or what?