[Greg Jones]

Where do you regularly position the spark lever for highway driving? Do you just advance to the bottom and leave it there? Do you have a high(er) compression head? When I lived in Parker it took me a while to learn proper spark adjustment on those Colorado hills (beautiful!) Not saying you are doing anything wrong, just wondering if you pull back on the spark advance when negotiating a long hill, that sort of thing. I beat the hell out of an A engine with too much advance and detonation that I was not smart enough to listen to. I sure know that sound now!