I'm not replying to anyone in particular here, but just for info, here's a pic of my 69 A body 383 exhaust manifolds lying next to a pair of 67 B body 383 exhaust manifolds.
Even understanding that the 67 A body 383 driver's side manifold was at least a bit different than 68-9, I don't see the B body log manfifolds as being 45 horsepower better than the 67 A's. Also, the B body logs will fit a 383 A body, so if they were so much better, why didn't Ma Mopar use them in the A's?
Last edited by 413coronet; 01/18/12 02:07 PM.
