The Stovebolt Site Forums The Shop Area Engine Shop Rochester B Flooding Issue

I am having a flooding problem ...
Rochester Model B flooding after only changing mechanical fuel pump (classicpart.com) which looks like-for-like for what i pulled off. It for sure has better flow and pressure.
The only way i know is that it is keeping inline filter full where the old pump was not.
I have stripped the carb, cleaned and re-assy. No change.
Float level looks pretty close. Slightly over 1-9/32" when air horn upside down. When i blow thru it the needle holds ... by mouth, not compressed air. So i think seat is reasonable.

But ... i do not know how to measure the pressure the pump is putting to the carb. Do i need an inline gauge or something?

When you did the vacuum pump test ... was vacuum pump connected to fuel inlet on the air horn? that is similar ... but more refined than me blowing on the fuel inlet right?

i have not replace the float needle and seat .... that might be what is needed. Was good enough for the low pressure from the worn fuel pump but not good enough for better / correct pressure.