I have a 1997 Formula with the LT4 conversion, done at 36,000 miles, and 95,000 miles. Just lately I've starting to get a quick miss.
Scenario: 70 MPH on highway with the cruise set, when the cruise starts to accelerate going over an overpass the engine will feel like its shuttering. On the flat highway it runs great but when its gets a load it bucks.
Also, I've noticed that on Mondays after it set over the weekend it starts as soon as I hit the key. Over night it cranks a few seconds before it starts.
I am thinking it might be the injectors. I am going to change the fuel filter tomorrow and add injector cleaner.
If I need injectors what size and do I need the PCM reflashed.
Thanks,