Is My Cuda Killing Me?

1968FormulaS340 said

I will assume you have full length tailpipes, if not that is part of the problem.

Do you have all the body plugs in? Should have about 6 in the trunk floor.

Also look at tuning, overly rich will make for a stinky car.

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Bingo! Love this site. You guys hit it, opened the trunk and found 4 gapping holes - all were hidden by the boxes of left over parts I have in there from the body work. Brilliant.

Going back to the shop to have them plugged, then burlapped and then carpetted :) Thanks everyone!