What is the best spark plugs gap for a 1997 Buick regal 3.8 b612 supercharged turbo?
AC Delco part number 41-101. Pregapped at .060". They're the original equipment type iridium spark plugs and will go for another 100,000 miles. HTH. -Jim
Search Buick Regal Questions
Buick Regal Experts
Related Models For Sale