Spark plug BRISK or AC DELCO

I use a Brisk n17yc.

Get a Brisk spark plug. Worked for me

Use the AC Delco iridium original plugs. Many sites will only show the double platinum as a replacement but every time I've ever driven an engine with those in it, it pinged or idled rough and iridiums always fixed it.

Been using the cheaper Brisk brand and never had an issue for 20k miles.

Heat Exchanger, also Brisk racing spark plugs I gapped mine to 0.026”.

Some people swear by the Brisk plugs, but I'd spend that coil money on either the Denso or NGK plugs that EQT recommends.

Right before i changed the map I also swapped spark plugs (brisk er12s). Since it started the rough vibrating, I’ve inspected spark plugs and coil packs, changed the coil pack grounding to a ground kit, cleaned the MAP sensor, and even tried throwing some liquimoly valve clean in it.

I recommend nothing with platinum. I've had problems with those in my 1980 gbody with a 305. I just keep it simple with old ac/delcos now. Keep it simple for less problems.

I had the same experience and ended up getting a code. Swapped them out back to AC Delco and never had an issue.

These look like knockoff acdelco plugs.