[30 Closed Cab PU]

If completely not firing to check for if a gas problem, try shootong some quick start or a misting bottle with gas into the air intake when cranking the starter - if it trys to run probably not a fuel issue.


If electrical.


Check/tighten/clean the battery connections.

Is your car running original design distributor parts/plates? Modern design parts, especially the wireless plate set ups are notorious for have strange and sometimes intermittent issues, including your issues.


Poor mechanical grounding of the distributor could be a problem


If original dist. parts, a misrouted shorting pigtail wire, or a broken pigtail wire.


All wiring/connections/crimps on the ignition wiring should be freshened in the ignition circuit. Make sure the ignition switch connections are tight/clean and not shorting to the gas tank, ammeter nuts are clean/tight, connections in the electrical box are clean/tight, etc., etc.


A thorough checking of connections is a good way to insure all is good.


If wanting to troubleshoot quickly I prefer using a multimeter/voltmeter, some prefer using a test lamp.