So im doing the 2.4 edz swap with the 420a head. I was thinking about using the srt4 piston/rod combo but my car is going to remain n/a for about the next year. So wouldnt the CR be too low? Is there a preferred CR that would work for n/a as well as boost?.. And since im planning to boost it in a year will the stg 2 crower cams (turbo/non turbo) work for both setups...?