[bliss]

Originally Posted by Gaz64

A 4780 (800 DP) is the same as a 4779 (750) throttle body, 1 11/16 throttle bores.

Shouldn't be too hard to find.

Here's one here:

Holley Brand 4780 800CFM Double Pumper Base Plate Assembly All New Complete USA | eBay

What's wrong with yours?

Gary

I was installing it and tightened too much - broke off one side of the plate and cracked two sides - I'm not really mechanically inclined - just a mistake.

thanks for the link. Actually, I've found out that the 4780 has 5 carbs, from 4780-1 to 4780-5 with two different base plates - 4780-5 is 12R11090AP (part number) with two others in the series 12R11090A - that's the problem with purchasing one from ebay, etc.