1971 evinrude 60 hp ignition/ misfiring

[Gianny]

My 1971 60 hp evininrude misfires after warming up when going past half throttle.
Work completed:
Carbs disassembled and cleaned
Fuel pump replaced
Cdi and coil unit replaced
plugs replaced
carbs synced and timing set to spec
points gapped to .010”
any help will be greatly appreciated
motor has over 120 psi in each cylinder and has very low hours
Running L77JC4 gapped at .030
Rechecked rectifier and found one diode closed both directions. Will this cause high speed misfiring even though battery at 12.3 volts when issue starts
Clipper circuit removed
Any help greatly appreciated

 

[racerone]

Run with a timing light hooked up.----One cylinder at a time.----Might be able to spot if it is one cylinder or all that is missing.-----You did replace the wee rubber boots where plug wires screw into the distributor cap ?