Jetting question. Primaries larger than secondaries
#61
Registered
#62
Registered
Join Date: Nov 2001
Location: Pennsylvania
Posts: 3,385
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
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.
#63
Geronimo36
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
![Default](/forums/images/icons/icon1.gif)
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.