I just took my stock intake horn and spent three hrs grinding it out since I can't afford an aftermarket one right now, I also hogged out the grid heater to match. It is amazing how much larger the opening is now. MY question is would it do any good to shim the fuel pressure reg if I only have the stock pump etc? I've seen a lot of it on the forums but don't know if I should waste my time without upgrading to a better pump system or whatever. I was told I need a mp3 or 8 (don't remember which), to get the full advantage of my edge on no. 6 which lays down if I don't set it where it don't defuel or anything. thanks again.