302 hiccup

[Bronco TC]

I just rebuilt the 302 in my 96 Bronco and it has a Hiccup .. or a miss . it is NOT consistent .. just every once in a while sometimes … this morning probably 8 times in 10 min .. before the rebuild … i replaced the injectors .. spark plugs, .. since it is not consistent i would think it’s electrical… anyone experience these issues?
Thanks for the help

 

[Tiha]

Those can be hard to find. Does it still do it after it is warmed up?

Is it like wet and humid in the morning when you fire it up?

Could also be mechanical, like fuel pump not caught up with full pressure yet or a lifter still building pressure.

Probably gonna have to run it more to make it easier to find.