Holley Street Dominator vs '73 Cast intake

nm9stheham said

Or the adapter restriction is gone.... that is what I would suspect.

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yeah, and I had to use the plastic spacer on the Holley SD because the fuel pipe hit the mount that's used for nothing. I wanted to bolt the carb directly to the intake. I could have ground down the mount post, but the intake was already on the car so I just added the spacer. That 1" spacer is probably costing me a small amount of low end.