using a 2 bbl carb in center position on tri power

[60s Refugee]

I've noticed several multi carb set ups that run a small 2 bbl carb as the center carb, with two single outriggers. I wonder, does this set up offer better low end performance? What carb do they use?

Harry

 

[grocery getter]

I feel on a fairly stock 200 that would be overkill and defeat the advantage of the tri-power.

 

[69Falcon]

I could see it if you used a progressive 2bbl and sync'd the secondary to the outboard carbs, or possibly as a three stage progressive setup (2bbl primary -> 2bbl secondary -> outboard carbs).

Either way, tuning will take a bit of patience. And I agree, on a stock 200 it is probably overkill. Now if it was a higher compression milled head with bigger valves, cam and a free-flowing exhaust, it'd probably build decent top end power but you'd probably lose some low-end torque.

 

[shmoozo]

I've noticed several multi carb set ups that run a small 2 bbl carb as the center carb, with two single outriggers. I wonder, does this set up offer better low end performance? What carb do they use?

The way I see it the tripower rigs are complex enough without adding in that extra bit of complexity. Frankly, a small, easy-to-tune single barrel makes sense for the primary, if you ask me. I think you'd get the best fuel economy that way, and you could size the secondaries to get the full flow you wanted for top end horsepower.

If you are going to use a two barrel, I would think that making it the only carb and sizing it appropriately would be the way to go.