and to add to this how would stock bore do? and as far as the head goes.Im assuming you would want to use some slightly larger cams and stronger retainers and springs? and as far as the intake manifold on the a1? and should i keep my a1 head or go with an b1? or b20?and crank wise what should i wanna aim to do with that.And will 440cc injectors be suffiecent for 10-15 psi? And the biggist and most importent.Tuning?!!?!

 

Ill just add to this. My EG hatch is boosted with the same set up you are going for. Its LS with t3/t4. I built the engine 5 years ago with stock rods, pistons, rings, barings no block guard or sleeves. Head is as stock as it gets.

Anyways. Im set up right now at 403hp at 18psi boost running the Hondata S300. Racing all day its running 11 sec flat.

It was the first engine I ever built and its still the same one in the car.

Oh and that is 11 flat at 5280 ft elevation in Colorado with a stock LS transmission w/ open diff.

Good luck with your build