Hey Guys, I got a question on fuel pressure. I recently installed a 255 lph pump with 24 lb injectors. Im not sure want pressure to run? When I had the 19 lb injectors I ran 40 lb of pressure. I ran it higher to compensate for the stock pump. The motor has a 93 cobra intake, 75 mm throttle body, trick flow stage 1 cam, gt40p heads, and full exhaust. I thought with the bigger injectors I could run lower pressure but it pings with anything lower than 38 lb of pressure with the vacuum hooked up. Im basically tring to tune it by the seat of pants feel but im not too good at judging it. Any suggestions??? oh yeah it has stock timing 10 btdc so i can run 87 octane not sure if that matters though. Thanks Will