Holley- setting the float chamber fuel level with engine running

[eng622]

With the engine running both primary & secondary chambers were leaking fuel out of the inspection hole. So adjusted the nuts clockwise and set lower so no leaking. Problem is it is difficult to tell with the engine vibrating and fuel sloshing about if you have set too low as Holley say just to the bottom of the inspection hole. If set too low what will I notice on road testing.

[kdavies3]

I doubt you'd notice it on normal road driving.
You'd have to holding a lot of throttle for a long time to empty them.
difficult unless on a track.

[Warren]

As Kev says, although they are thirsty beasts you would have to be wide open throttle for a fair length to empty the bowls.

W

[neil50]

I have clear see through plugs on my carb instead of the brass ones. i can see the fuel level just touching the bottom of the sight plug which makes it easier than trying to view them with brass plug out to see the level.

[mylesdw]

In answer to the OP - if the fuel level in the bowl is low you may notice a flat-spot as you come off idle and part throttle. Fuel level influences the point at which the main jets 'start working'