i searched this and couldn't find anything on what the compression for an h22 should be. i am putting out what seems to me an excessive amount of black smoke through vtec. i know that smoking through vtec is normal but like i said seems excessive. no oil resin on my bumper so i'm sure its nothing critical yet. i have 1 cylendar at 190 and 3 at 195 is this good and at what time should i rebuild or atleast re-ring it?