Ignition problem (I think?)

[leaseline1]

My thoughts are first check all engine and chassis grounds for solid connections all around. I've seen so may odd intermittent issues on cars being related to poor grounding. Bad ground straps to the engine, paint between connections, poor mounting points preventing metal-to-metal, or corrosion etc. Use a meter and check for complete continuity of ground circuits. If that checks out good, and you feel you still have an electrical component failure of some kind, then look at any component board connection points you can access. Many component issues that are not total failure may be due to a weak /cracked solder joint on a board usually at a connection point. This is more common than most people think and you need to look really close with a flashlight and magnifying glass for small cracks.

If all of that checks out, and its not an electrical issue, then bad fuel may be the issue. This time of year here in Florida, carbs can be a nightmare due to fuel percolation, vapor lock, water in the fuel, fuel filters clogging, etc. The winter fuels seem to be especially bad and I just broke down, or so I thought, last week in my 427 SC SPF with sudden engine failure and I was sure it was electrical. I popped the air cleaner and saw fuel boiling into the primaries so I held the throttle on the floor and she fired up and I got home keeping revs up. This is with a new perfectly adjusted Holley and the float levels are spot on. As a matter of fact, it wasn't all that hot and I use phenolic spacers and isolate fuel lines etc. My buddy's 69 Camaro with a stout 383 is having similar issues driving him crazy. The fuel or carb does not need to get very hot to have this issue and its often overlooked. You really can't insulate everything enough sometimes without killing the "look".

To solve that type of problem permanently, next week, my new FAST 2.0 Throttle body EFI comes in so PROBLEM WILL BE SOLVED and my Turkey Pan will still remain and look close to period correct (which is my taste)! Good luck and let me know what the outcome is!