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.

If it's not the gas, get your timing checked.

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?