best headers??

WE used TTi's with a BB in a 68 Valiant and SB 67 Dart they fit like a glove. No dinging. If you have problems than something on your side need to be addressed.

Were either of those cars manual transmissions? I don't recall either being 4 gears.

Maybe you should call them and ask about the clutch linkage issues... the answer I got was less than satisfactory.

Sorry for that much money, you'd figure they'd design them to work with a manual transmission.

I do know they donate stuff to your cause which is fine, but, that doesn't solve the issues plenty have had with the product.