Correct fuel pressure for dual carbs? Options

[terrymason]

I'm having alittle trouble getting my dual carbs dialed in, the 1st is rich, and the second is lean. My fuel pump was putting out 3.5psi, but the guy I bought my carbs from said I should run 2.6psi instead. What do you guys think?

I've got 60 idle jets and 180 mains, which I thought was overkill, until he told me that I should run 2.6 instead of 3.5 psi.

[terrymason]

I talked to Aaron from CB performance, who was awesome. He asked some really good questions, and I think has put me on the right track. A couple of things that came from it.

1. covering the barrel of the first carb will kill the engine - covering the barrel of the second carb does nothing.
2. no amount of adjustments seem to do anything to the second carb.

It really sounds like I have a air leak in my second carb. When I go home tonight, I'm going to spray carb cleaner around and see if I can find it. That would pretty much explain alot of what I'm seeing.

[Gint]

I talked to Aaron from CB performance, who was awesome. He asked some really good questions, and I think has put me on the right track. A couple of things that came from it.

1. covering the barrel of the first carb will kill the engine - covering the barrel of the second carb does nothing.
2. no amount of adjustments seem to do anything to the second carb.

It really sounds like I have a air leak in my second carb. When I go home tonight, I'm going to spray carb cleaner around and see if I can find it. That would pretty much explain alot of what I'm seeing.

You mentioned once that you were going to check/change linkage adjustment for one carb. If you haven't verified that the carbs are sync'd *without* the linkage attached, then you are not starting at ground zero.

No amount of adjusting the the carb that doesn't seem to do any good is worth much until you've verified that the carbs are sync'd *without* the lnkage attached.

Seriously, start over, from the beginning. Remove the linkage and sync the carbs without the linkage attached. Then try adjusting that carb and see what happens. Personally, I'd start at the very begining (in fact I just did two weeks ago) and rebuild the carbs and set those floats first.