Just wondering what the best brand plug wires and plugs are for a 1997 bonneville, 3800 series II engine?

Autolite copper plugs are a good plug, and cost very little.

As for plug wires, many use Belden wires. You can get them at places like NAPA. I use MSD, but those tend to be a bit more expensive.

You do not need spark plugs that cost $25 each. You don't add power with spark plugs. And you don't need expensive wires. New stock wires are just fine.

I run NGK tr-55 plugs in my PA. 20,000 kms and still going strong. Platinum and those other fancy dancy plugs are a waste of $$ on these cars as previously stated.

Beldon wires are definitly the way to go. Installed them first on the lesabre, then transferred them to the PA. Had to warranty them once, and they don't give you a hassle.

Belden or the AC Delco replacements