Jetting question. Primaries larger than secondaries
10-27-2016 | 08:26 PM
#62
Registered
Joined: Nov 2001
Posts: 3,393
Likes: 6
From: IBX
Since you don't seem to have an exotic engine, the first thing I would suggest you do is put the carb back to "box stock" marine calibration plus 5 jet sizes front and rear. You might be surprised at how that gets you where you want to be.
10-31-2016 | 12:50 PM
#63
Frank's Marine Service
Joined: Sep 2002
Posts: 11,959
Likes: 142
From: Elkton, MD
I with BT on this one... When sized properly a Holley will pull about as much fuel as it needs within a few jets either way. Any more or less then that and it's probably the wrong carb or something else is wrong. I don't think 13:1 at cruise isn't a big deal because the engine isn't under a heavy load. It's the full load numbers that are more important in my opinion.
