I have a 2010 superglide it' stock except for the air filter

Vance & Hines Replacement Filter For V02 Air Cleaner

and a fuel.pak and a Vance & Hines big radius 2 into 2 exhaust lately it' been running lean fuel pressure is within range my fuel pack will not stay at any number when I shut bike off other than disconnecting all together what else can I do

 

Not exactly what I would call stock. Also, do you have the old style piggyback fuelpak or the fulepak3? And what makes you think it's running lean?
If it's the old type, pull it off and see if there's any change.
You can always contact V&H for customer support and see what they suggest.

 

I've never liked piggy backed systems (sled or cage)

Get a proper dyno tune - sled will happy...., and thank you w/ many miles - of smiles

(admittedly that last part sounds gay - but what the hell)


Ghost

 

Do a fuel pressure check. You could have a leak in one of your in tank line