Plug type: Champion L87Y,, Plug gap: .020,, Point gap: .016-.020,, Dwell 48-52 degrees,,, Valve clearance: intake .003(cold);exhaust .006(cold) AND COLD MEANS OVERNIGHT > NOT A FEW HOURS IN THE SERVICE BAY!!!!!,, Ignition timing: 48 degrees (BTD center) with v... Login to read more.