Here was our last hurdle. With the engine running and no leaks, we thought we were done and went to put the old air cleaner on. It didn’t fit. The extra-low base of our air cleaner wouldn’t clear the distributor. The solution was a trip to the speed shop to find a plastic spacer. A 3/4-inch spacer (PN 8092) from Edelbrock did the trick. One thing that did fit was the original throttle-return spring.