Holley base plate ID needed
 

I recently purchased a 3310-1 and it had the wrong base plate. The cast numbers are 2R4233F and there are no stamped numbers on it. Does anyone know what carb models this went on?

Thanks,

Martin

Re: Holley base plate ID needed
 

I finally had time to take a couple photos. Throttle plates are 172s.

Re: Holley base plate ID needed
 

Looks like an early 3310 "EH" baseplate. The 3310-1 used a different casting with a flat machined boss on the pass. side rear corner that can be drilled to accept a PCV tube like the `66-`72 style 780's.

Re: Holley base plate ID needed
 

Thanks, I have a correct 3310-1 baseplate stamped 33101. It has the flat boss that you mention and a vacuum port out the rear. I'll just rebuild with that one and plug the rear.