Well, i have been having a problem with the engine missing under WOT or acceleration under a load. I have replaced the distributor cap, plugs, wires, fuel filter, and checked the anti syphon valve. Still the same issue.
What i did find tonight is the coil positive side connection only shows about 10ish volts while running. And if i use the trim, tabs, or blower(andthing electric) the voltage drops even more. My batteries are showing 14v while running.
Tonight i tried unplugging the electric choke and the voltage then jumped up to 12-13v at the coil positive side, but still shows a drop to about 11ish when an electric load is put on it.
Any ideas of what may be going on here?
The engine is a 454 with a thunderbolt 4 ignition system.
Thank you
What i did find tonight is the coil positive side connection only shows about 10ish volts while running. And if i use the trim, tabs, or blower(andthing electric) the voltage drops even more. My batteries are showing 14v while running.
Tonight i tried unplugging the electric choke and the voltage then jumped up to 12-13v at the coil positive side, but still shows a drop to about 11ish when an electric load is put on it.
Any ideas of what may be going on here?
The engine is a 454 with a thunderbolt 4 ignition system.
Thank you
