To rebuild or not to rebuild. That is the question

[drbarbara]

[quote=THEFERMANATOR;124128]
". This is a marine style carb. Notice the J vent directing the fuel vapors directly back into the venturis. You could also look on EBAY and I'm sure you can find an old 2 barrel ROCHESTER off a low HP V8 and bolt right on and go with your current engine."

So is this a marine carburator or not a marine carburator. I thought it looked like a Holley 2bbl from the pictures I have seen. Are they interchangeable between Holley and rochester?

Sorry for newbie question