Originally posted by rs-pssst
With Portfueler and higher horsepower: You will most likely be running so rich (to lower your cylinder temps) that you will be washing out the oil that helps protect your pistons. If you are thinking of running any kind of reliable high HP car on our platform, you really want to have timing control. That way you can control detonation without sacrificing the longevity of your (expensive) pistons. Ask how many of us used to have stock pistons, running 8psi and wanted to dial it up a couple more pounds, or did a long pull in fifth gear. You will not want to replace those JE's. I don't want to scare you, but so many of us have gone that way. Portfueler is merly a quick bandaid to a problem, which in tern, causes other problems. I know because I used to have portfueler and now have MS. I have also dissassembled (multiple times ) my block and noticed the fuel washing out the pistons, causing excess friction, and scuffing the skirts of the pistons. FYI, I have recently been running (reliably, engine wise) 21psi, on a S16G, daily driver, for over a year now.