Thank you for alll the spark plug info! I’ll definitely do all the above. I still don’t see how the cap can be put in backwards? Is has a notch and The 1 is on the front (facing the rear if the car) and wires start there and follow the sequence around.
Regardless, I decided to start by removing the carburetor and clean it. I’ve been having backfires so the jets may be getting clogged.
I’ve had the tuning kit since I bought the car but had been afraid to use it… 😬
Here we go!!😁😁