Dual Plane vs Single Plane Manifold with TBI

Would like to see Any and all comments from the guys and gals in the know on this subject. (OP original quote ^^^)

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Just a few questions to help understand your final goal.

What is the starting point of your '66 273 e1ngine? Stock build, stock cam, 2 bbl single plane with 2 bbl carb like this intake below?

Or being a Commando is it a factory 4 bbl.

Right from the gitgo it was a complete 66 Commando motor right to the stock single plane cast iron 4 barrel Commando intake using the AFB carb down to the oil pan. It’s been to the machine shop and now ready to be assembled. Racer Brown supplied the cam which is based on an OEM Commando cam with a few minor upgrades based on his recommendations. When ready to be assembled, the only deviation will be swapping out another forged 273 crank with the larger crank pocket allowing me to run a later transmission (A500)

If an improved 4bbl carb setup can be achieved on your existing intake and it starts and performs nicely would you be happy with that?

Just a thought for a 2 bbl intake so you don't have to open up the engine for a manifold change.

I will only use a Carb to break the cam in on a run stand, then add the Sniper when I install the motor in the chassis. I would like the use the best manifold based on using the TBI right from the start after motor break in.

Or do you have your heart set on doing the 100% conversion over to a Sniper TBI setup with onboard computer, and higher pressure in the tank fuel pump . . for the fuel injection systems?

Just Curious . . .

Right from the day the wagon got delivered, it’s been my intention to run FI. I have pulled the trigger on the Sniper as well as the Holley A Body in tank pump system with sending unit. I could use the OEM Commando intake with an adapter hence this discussion. I know people use adapters quite frequently. I really don’t want to go that route.

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I was discussing with @oldkimmer the subject of intake manifolds and his recommandation was to use a Holley Street Dominator or an Edlebrock Streetmaster rather than the LD Or commandow/adapter that I have. I am open to any comments on anything I have mentioned