My meth kit is the best thing since c16 as far as pushing boost. After figuring out what mix my car like and how much to injct i'm seeing 25psi on the street with only 1-2* of knock that i can dial out once i get my ignition problem fixed.
Get a DevilOwn kit, ask him on the phone to exchange you an M10 nozzle and leave out the M3 (the 3 is too small for anything bigger than stock IMO as the flow #'s aren't there on it) I started with a M7, then went to the M10. MY car did 12.08 @ 117MPH on 19psi and race gas (with HIGH timing) a few seasons ago. I can't wait to go back on pump + meth, throw on the slicks and hope to break 11's and get kicked out for no cage. Then my drag racing career is over and i can be pleased knowing i have an 11 second car.