Well, I couldnt get my car to run quite right with the pro-m 80mm callibrated for 42# injectors. I took the 42's out and put back in the stock 19's and it cranks right up but wont idle. Give it gas and it sounds great, so I am thinking that the meter is still sending a pw for the 42's which is way to small for the 19's. I am looking for a way to trick the meter and have it send a stock pw to the injectors. Any help?? Thanks in advance.