Fuel bowls over filling

[RFSPHPbb]

some guys get stuck in a rut based on what they did back in the 80's or whenever. for an example see the guys still running HV/HP oil pumps with 20w-50 oil.

[55LS403]

Well the .110 needle and seats DID NOT fix the problem. Guess it's time to try some new floats and maybe spring loaded n&s. Love having to do this to brand new carburetors

[55LS403]

All four wedge floats have this finish on them. Almost like it was cut after the fact. The floats weight out at 10.3 grams.Any input?

[bigblockmark]

Soak them in gas overnight and reweigh them. The float is porous by nature and a sealer layer protects it. Modifying the shape would require recoating. If you don't need a cutout for jet extensions, brass floats have worked for years.

[RFSPHPbb]

that's a closed cell material, not supposed to soak up gas at all.

have you tried lowering the fuel pressure a little? how much are you running?

[55LS403]

[RFSPHPbb]

provided the gauge is right it is conservative. Can you put two of those float bumper spring on the float?

[hipockets72]

Lower the fuel pressure to 5. if you have proper size line and pump, 5 psi is not too low. The bottom feed N&S require less pressure than the std style.
I recall someone on the chevelles.com forum who had similar issues with sideways mounted carbs on a tunnel ram. He went to spring loaded N&S and that took care of the problem.

[55LS403]

[markw]

Tunnel ram motors really shake the carbs around with a rowdy cam. A carb that seals fine on a low manifold can get iffy mounted up high. 6 psi is a lot of flow for 4 needles. Won't be a problem at 4.5 -5 and the needles might seal better.