guitarman do me a favor and sell your SVT - being a cheap-ass with a high performance car is pathetic.
PS the knock sensor and ECU can only retard the timing to a certian point and then it can STILL knock and the ECU will NOT pull any more timing. PLUS when it pulls timing it ADDS fuel and thus your milage gets worse, so you use more fuel and therefore you just negated any savings you made by trying to be a smart-ass tight-wad and use craptastic tractor piss gas! I'd love to see how speckled the tops are you pistons are from use low gr4ade fuel
oh and PPS: when you can HEAR pinging with you ears it's already to late!
There are those of us who KNOW how the EEC-IV works and those of us who THINK they know - you fall into category two.
