[1969c10joe]

that makes sense i had vac advance plugged in manifold and played with idle speed timing didnt change. I holed a piston because sae mechanic set my timing never again.Of course if i had pulled over for that ford on that long grade outside of bakersfield....we were both pulling trailers and he insulted my truck im going deaf didnt hear knocking BUT I LEFT THAT DIESEL IN THE DUST.very slight satisfaction in beating him one of the dumber things ive done