318 Port match heads to Performer RPM Intake

If I were playing with those intakes on “mild” 318’s....... what would be an interesting test to me is........
modding one of those to use a Holley 4412 on some sort of spacer/adapter where the transition was nice and smooth....... vs how you have it with the big step down from the 4bbl adapter to the 2bbl manifold.

Sort of a....... which is worth more?
The bigger carb.......or the “better” transition?

I thought I recently saw an ad for a 2bbl Holley Sniper EFI.
That probably uses the 2300 style mounting plate.

Edit..... yup.... here it is:
Sniper EFI 2300 2BBL - Holley Performance Products

Yes kind of fun to see what a person can do do make things work here. Thinking that 91 manifold and 4 bbl adapter is going to work out nice on this 318 here. Stock flat top pistons .040 down in the hole with the thin .028 ths head gaskets and fresh 302 closed chamber heads. Real close to 9.5:1 cr.

The main reason I am looking into these is that I put the same 2 to 4 bbl kit on a '69 Satellite Stock 318 with the factory 9.2:1 pistons.

Really woke up and made it start and run real nice too with 1406 electric choke Edelbrock on it. Did not have to rejet a thing, just ran nice. Even the tone of the engine deepened up listening to it idle with the hood open. Now the engine was getting the fuel that it needs instead of running that economy factory 2 bbl.

Then there was the added fun and additional performance of the 4 bbl.

Pulled real nice even in the bigger B body car. 2.94 gears behind a 727. Freeway speeds not a problem, want to pass someone just open up the four barrel and you are good.

Was such a nice upgrade to the Stock 69 Satellite, made a real nice driver out of it. And did not have to pull the intake or change the cam.

So yeah will be fun to see how this next one works out on this Roller 318 Conversion to 4 bbl and manual fuel pump.