Like the title says how much boost could be safely run on a relatively new h22a (open deck) with forged internals and a sleeved block? Educated estimates and personal experiences are all welcomed. And, even though its aftermarket sucks, would the closed deck design of a jdm H23a DOHC vtec (out of a jdm accord not the usdm pre 97 prelude) be a better option for a transplant into my 2000 accord with the intentions, of course, of alot of boost. By the way I'm saying "alot of boost" as in 15-20psi. Thank you in advance for the help.