hi this is bino,im noticing pinging at certain speeds. especially inbetween 20 miles an hour, through about 45 miles an hour. i put cheveron 92 octain all the time,so what could be the problem. i need a recomandation on headers.should i get slps or jbas for 195 z28 lt1.
An LT1 shouldn't ping, ever. It's electronically impossible. That means it's broke, so take it to a good dealer and get it fixed. It may be still under warrantee (5 years / 50,000 on drivetrain and emission controls) Have you ever changed the plugs?