Misfire

[brarei200]

I have a 1995 LT1 that has a rough misfire under load. It has new plugs and wires with barley any miles on it. Optispark was replaced by previous owner probably 10 years ago. I only put 2,000 miles on car since I had it. Fuel is fresh. I had to replace a fuel injector couple years ago and I tested them all at the time.

The weird part is the misfire goes away only after driving it for like 30 minutes.....

I'm thinking fuel filter but I don't know where to start after trying that.

Thanks in advance

[SSlowBoat]

I have a 1995 LT1 that has a rough misfire under load. It has new plugs and wires with barley any miles on it. Optispark was replaced by previous owner probably 10 years ago. I only put 2,000 miles on car since I had it. Fuel is fresh. I had to replace a fuel injector couple years ago and I tested them all at the time.

The weird part is the misfire goes away only after driving it for like 30 minutes.....

I'm thinking fuel filter but I don't know where to start after trying that.

Thanks in advance

Sounds more like a sticking injector that calms down when its been run for a bit and hot.

[brarei200]

Surprisingly today I changed the fuel filter and it runs fine now.

Such an easy fix it doesn't seem real lol.