1966 Barracuda 273 build

Hello to all out there. I will thank you all now for any info and knowledge you can give me. I bought a 66 barracuda with a 273 2brl. Not the Commando. It did not run but all was intact. Soooo.. my nephew who is a mechanic said lets take out the motor, tear it down and mild build it. So having said that, the motor is out, torn down and here is what has been done:
Block tanked and cleaned, Cylinders bored 60 over, New Pistons purchased , new Mild RV cam purchased, Crank ground. I have the original cast heads and intake.
So here is where I get stuck. Right now my nephew has taken a back seat and im kinda stuck because he has not been around to lend a hand. What I would like to know is the following:
I want to convert the 2brl to a 4brl. Therefore is there an aftermarket intake that will fit 66 barracuda with a 273 ? Where can it be purchased and what type of carb? Also, are there any replacement/aftermarket heads that will fit this application to make this build work? This car is for my son so I'm trying to get this done quickly. Is there anything Summit Racing offers? If there is any more info that you may need to help get this moving. I have the specs when I purchased the cam. I also have pictures of most every part. Thank you, Glenn66
Glenn
Happy to see other 273 fans out there. Mine is almost ready to go: 30 over, decked, line bored, hyd cam, hardened seats, ported heads, air-gap manifold, holley 570 street avenger, rebuilt 833 with Inland shifter. I hope to use the same the air cleaner pictured earlier in this post. The air gap is a bit taller than the 2bbl manifold, but the 4bbl carb is shorter than the 2bbl (3 1/4 vs 4 1/4). Do you know of any shorty headers that are available? Does anyone know if spitfire headers are still available?

Please update pics as your project progresses.

Stroker

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