[74 SD455 Formula]

Here's a couple of pic's of my Original paint 74 Formula. Hope it helps.

[vitamin c]

How are your head pipes from Gardner configured? One piece off the manifold, or two piece with the manifold elbow needing to be welded after installation? I just installed the 2 1/2''Gardner system and had to weld the elbows after the system which is no big deal, but after the install I was thinking that the elbow looks pretty restrictive.

[njsteve]

The Gardner systems are an exact duplicate of the original ones - with the same original flow restrictions and all.

If you are looking for performance, go aftermarket like a Pypes system. If you are going for restoration go Gardner.

I have had the Gardner systems on two 455HO 1972 Formulas and they looked perfect on a full restration but I went with a Pypes crossflow on my Gramma's car with their new 2-1/2" Ram Air D-port manifolds, and that exhaust completely out performs the stock/Gardner system in terms of performance.