I currently going to be putting this into my car:

H22 P&P by LDL SPeedshop (milled .30)
Crower Valvetrain
Crower STage 2
JG 70 mm TB
Skunk2 IM
sleeved 87 mm
P28 w/ hondata s200
Findanza camgears
Findanza flywheel
ACT HDX clutch
Eagle Rods
CP pistons
370 RC injectors

Im going to use my JDM H22A Block but the shop said it would matter if it was JDM or USD H22 once everything is pulled out. Should I use the JDM or USD? Also, if I sleeve do I have to bore it out as well? I've heard on HT that if you don't bore and only resleeve in a few months my motor will go downhill?

 

whether it is a JDM or USDM...It doesn't matter. And for the last question, you should ask EARL. Just search his name.