I want to replace the original carb. on my 66 BB 425 HP; Any recomendations as to brand and size? I plan to store the original.

 

For simplicity, I think another Holley 4150 dual feed would be a good choice. Unless you get a replacement type, you'll need to convert to an electric or manual choke (which is easy to do). I'm recommending a 4150 instead of a 4160 series so that you can (I think) reuse your stock fuel feeds. 4150's are available with vacuum or mechanical secondaries and in a wide selection of cfm ratings. Your original carb was rated at 780 cfm so, depending upon how you use the car, anything from 750 -850 should work good.

 

Thanks for your help. I had suggested to me a demon carb as well but would rather stay as close as possible to stock.