I'll start of by saying I'm a Triumph guy. I know a bit about Spitfires and Heralds. So when a co worker bought a '79 Midget and had some emissions control questions I figured I'd help out. Anyway, the car is missing the air rail, smog pump and cat. After looking at it closer, there are no provisions in the head for the air rail. The car does have an EGR valve and 2 sets of mounts for throttle cables. I'm guessing he has a '74-76 motor transplanted into it, or maybe the head has been swapped. Here are the casting/spamping #'s, block: FP6339UE, head: TKC3239, and the vin: GAN6UL213757G. The tag in the door jamb says it was built June of 1978. The car needs a cat and the SP inorder to pass emissions. Any help would be great, thanx!