YEAH!
thats why i'm thinking the smaller carbs have a better chance, because the 'vacuum signal' which is really a pressure differential between the hat and the manifold, will be greater and they will operate more like stock. the YF is especially good because the 'metering rod' which is really a needle jet, is directly tied to the throttle position... and needle jets are super easy to tune, just chuck them in a drill and spin them against sandpaper to gradually reduce diameter and richen them in the ranges you want.
i'm thinking that a stiffer spring on the power valve and drilling out the 'jet' passage will give you some tuneability to that, at least in the 2100 autolite. I don't know jack about holley but i'm thinking it might be time to learn, as the info for holly tuning under boost seems to be more readily available. I have a 2300 on my boat and its a nice little carb when the damn electronic choke decides it wants to turn off.
coming from the motorcycle world, there is a lot more tuneability to most carbs than just swapping out the 'tuning' parts, holes can be enlarged, slides can be cutaway, needles can get turned down... might be as simple as some kind of externally adjustable air bleed leaning it out under boost.
obviously i still have a lot to learn about carb tuning, but i'm getting closer to figuring out how much i don't knwo.
thats why i'm thinking the smaller carbs have a better chance, because the 'vacuum signal' which is really a pressure differential between the hat and the manifold, will be greater and they will operate more like stock. the YF is especially good because the 'metering rod' which is really a needle jet, is directly tied to the throttle position... and needle jets are super easy to tune, just chuck them in a drill and spin them against sandpaper to gradually reduce diameter and richen them in the ranges you want.
i'm thinking that a stiffer spring on the power valve and drilling out the 'jet' passage will give you some tuneability to that, at least in the 2100 autolite. I don't know jack about holley but i'm thinking it might be time to learn, as the info for holly tuning under boost seems to be more readily available. I have a 2300 on my boat and its a nice little carb when the damn electronic choke decides it wants to turn off.
coming from the motorcycle world, there is a lot more tuneability to most carbs than just swapping out the 'tuning' parts, holes can be enlarged, slides can be cutaway, needles can get turned down... might be as simple as some kind of externally adjustable air bleed leaning it out under boost.
obviously i still have a lot to learn about carb tuning, but i'm getting closer to figuring out how much i don't knwo.