What kind of spark plugs would be best for my 99 GA GT? Its made for performance, has a K&N cold air intake and Taylor plug wires. Borla exhaust and other minor upgrades. I want the best for performance and hopefully I can go to Oreilly's to get them.
THANX

Stock ones. AC Delco.

AC Delco are the best spark plugs for GM vehicles.They are not cheap,$8.00 to $10.00 a plug and they are double platnium.