For years I've heard that only Weiand had an intake manifold that mounted the carburetor low enough to clear the stock C3 hood.  Now I hear about Edelbrock, and even GM having good aluminum intakes.  I have searched many forums, including this one for an answer, but I am starting this new thread because I don't want to be getting seventeen-year-old information.  I am going to keep the stock QJ.  I'm using a set of ported GM ZZ-3 heads, and a Comp flat tappet street cam, headers and 3" pipes to the rear.  What manifolds have you actually used and recommend for the change?

Dick J  Longview, Texas

Mornin,  I think the year of the car, and style of hood is the answer. My 72 will not accept a aftermarket intake. At least not the one that will fit under the 75 hood. I also know that a Holley will not fit on the offenhauser under the hood on the 75. I have not tried BB hoods of any style. I have Baby SBC power. 

My '75 has an Edelbrock Performer dual-plane manifold (though not for the spread-bore carb.) and with a 1/2 inch spacer, there is still about 1/2 inch clearance above the drop-style air cleaner to the hood.

I forgot to include: it's a 1979 with 350 small block and stock hood.

Thanks

In my 1978, I run a Edelbrock Performer with the original (rebuilt, re-tuned) Q-Jet with a drop-over air filter base, open 3" filter and chrome top.  No issues with hood clearance.