L175 Injector Question

[In Utopia]

Just wondering something about the injectors on my L175. Recently changed them out, bled them and put it back to work.
Question is if there was a small amount of air left, would it bleed off through the excess fuel return? I watched what I think are small amounts of air returning to the fuel tank.
Also after running for several hours it seemed to have a little more power running up a hill I used to have to drop down a gear to make it to the top.

 

[D2Cat]

After having the fuel system open there may be small amounts of air in the lines. After a few minutes of the engine running all air will be purged and no more enters the fuel lines. Fuel is drawn off the (near) bottom of the tank, air stays on top.

 

[North Idaho Wolfman]

Yes it will bleed off any remaining air via the overflow line back to the tank.
Keep an eye on it, if it keeps doing it you might have a small leak in a rubber line that feeds the Injection pump.

 

[In Utopia]

Thanks, will do.