Can I hijack this thread? Its actually the same question with specific details.

I am building two 78 broncos, i found them recently, they had made their way from west texas and had zero rust, not even any holes on the bottom side. Anyway, bronco #1 will have original 400M everything stock with a brand new two bbl and edlebrock 0-4500rpm intake/ cam is 1500 to 5500rpm. iam ok with this setup, I think it will turn out as i plan. Bronco #2 will have my 3/4 ton 460 rebuilt stock, THE question is, will the new 650 cfm Holey be big enough for a pretty much stock 460.

Ohh my twin 14 year old daughters have laid claim to these, we'll see...........