Stanwaldruff
New member
Checked fuel line/fuel filter/ anti-siphon valve/ rebuilt 4 barrel carb/ replaced distributor cap/ rotor/ ignition sensor/coil...starts easily runs strong up to 4600rpm..25 seconds it looses power -about 1200 rpm and surges a couple hundred rpms.. so could it be my ignition module going bad? How do you test it - new one about 600$. I gong to recheck my floats on the rebuilt carburetor. NO back firings just lose power at high end.