heres the scoop , i own a blown alcohol 427 in a sanger hydro. motor wasn't idling high enough. i opened the butterflies a little more with set screws , motor seemed lean so i turned the adjustment on the barrel valve to fatten it up a little. i didn't think i needed to change idle jet pills . and then all of a sudden it started running like top fuel and 2 foot fire balls shooting out zoomies !!. motor started having some of fuel knock to it , it sounded crazy as hell . scared crap out of me thinking any minute two things going to happen catastrophic engine failure and ignite my ez up on fire . ran like hell to fuel shut off and motor died before i got to it . let it sit to contemplate what just happened , couldnt tell ya . so refilled tank and started again now runs perfect , no i wasnt out of fuel , but i dont think that would of done anything to effect it if it did run out . what would of caused this ? anybody know ?