DAVE14
03-31-2006, 02:48 PM
my 440 im sure needs jetting & its 12.5 to 1 but in the late fall & winter I got away with running 94 octane with some octane booster & it ran great no pinging etc. yesterday the temps were almost 20 degrees it it definitely souned pingy , exhaust temps were big time warm even just puttin around leisurely it sounded pingy off idle & a little under a load other rpms was allright ,now that its warmin up what octane does this thing need & where can I get it in Canada the local airport cant be bothered selling me a little bit of high test ?