Helped a friend set up his new Rossi FISE .45 with 10mm carb this morning. APC 10x7, 10% Cool Power.

The only problem I see is that the high speed needle needs to be way out to be able to get the idle lean enough to have a nice clean transition.

Is there a "fix" for this? I have considered shortening the tip of the H.S. needle to allow/require it to be a turn or two further in for the correct H.S. mixture. Does this make sense?

Thanks,
Jim