2bbl to 4bbl conversion?
This adapter? ...But with Carter BBDs and progressive linkage? Oh, I thought you had something else.
This one should run hardly different than a 4bbl,almost like a double-pumper.
But I would still leave the back carb open some to keep the transfer slots alive, to prevent a tip-in sag.
That looks pretty adjustable...
and pretty too.
This might sound crazy but;
I might try idling it on the secondary transfers, and dry up the primary transfers a little, but use the primary mixture screws as trimmers; then use pump-shot to eliminate the tip-in sag of the primary carb, if any appears with that funky intake.. As soon as the car is moving it should be fine. Or maybe you already tried that.
With the back carb having a pump on it, you might be able to close the throttles further than I imagine.
In any case, idle-timing to just off-idle timing is gonna play a big role in the success of this combo.You might have to back the idle-timing way down, But then you are gonna want to get the curve started asap. That will require a two-stage curve for sure.Don't know if the Mopar long-loop spring will stay on the HEI pins.
It looks to be a challenge for sure.
This adapter? ...But with Carter BBDs and progressive linkage? Oh, I thought you had something else.
This one should run hardly different than a 4bbl,almost like a double-pumper.
But I would still leave the back carb open some to keep the transfer slots alive, to prevent a tip-in sag.
That looks pretty adjustable...
and pretty too.
This might sound crazy but;
I might try idling it on the secondary transfers, and dry up the primary transfers a little, but use the primary mixture screws as trimmers; then use pump-shot to eliminate the tip-in sag of the primary carb, if any appears with that funky intake.. As soon as the car is moving it should be fine. Or maybe you already tried that.
With the back carb having a pump on it, you might be able to close the throttles further than I imagine.
In any case, idle-timing to just off-idle timing is gonna play a big role in the success of this combo.You might have to back the idle-timing way down, But then you are gonna want to get the curve started asap. That will require a two-stage curve for sure.Don't know if the Mopar long-loop spring will stay on the HEI pins.
It looks to be a challenge for sure.
