[DeTomaso] I unbroke my carburetor!

[JDeRyke at aol.com]

Using a UV 'black light' source, you can see the gas level clearer thru the 
sight glass, and set the float height as usual with the upper nut & screw 
to just-visible, thus you don't need to make a mess (or a fire hazard) by 
removing the sight glasses. If you bring the level up too high, just slowly 
lower it until the gas level disappears in the sight glass. 
FWIW, some Holley float bowls have non-removeable sight glasses built in, 
while others (plastic aftermarket) are screw-in style. These last usually 
have visible black rubber gasket-washers while the permanent ones are crimped 
in place. Don't get the two mixed up or there'll be tears.... Good luck- J 
DeRyke