Rochester Quad
 

I have a Quad that is clean having trouble identifying
# is 7041224 D3 D731 it is chev carb comes fuel line come in at 90 degree have determined that it is 71 auto . It could be a canadian carb .
I,m more familiar with carters & holley 's .TIA gerry

Re: Rochester Quad
 

I believe it's a 1971 Chevy big bock pick up truck auto trans 49 state legal not a high altitude carb. Fed 387

Re: Rochester Quad
 

I must have built a million of those things. Air Horn warpers. Secondary well plug leakers. Certainly needed some tweaks.

Re: Rochester Quad
 

here is a pretty good source of information on these. I am just learning them myself. http://www.carburetion.com/quadnumber.htm
Well,,, maybe not. I can't actually find that one there. But I think FED is correct. I found several sights that decode the numbers.