I finally got my y block started after a few problems like accidentially put wires on new cap in the right order but one hole over, and the carburetor power valve was leaking fuel in to the engine I had to change the oil and replace the new gasket it seems that when you tighten the power valve the gasket rips. I put a plastic one in there and I filled the bowl with the carb off and it does not seem to be leaking but after I start the car and shut it off the car does not start unless you hold the throttle to the flor. I rebuilt the carburetor and bought a new fuel pump but it still seems to flood. 

Timmy:

What carburetor do you have?

John

John - "The Hoosier Hurricane"

John I have the carburetor which has a rount top where the air cleaner fits and the carb bolts on to the intake on 3 studs. I can't see the name of it thanks

Timmy:

I have heard those carbs are sensitive to fuel pressure, don't like more than 3 or 4 psi.  When you shut the engine off, look down the throat and see if gas is dripping from the fuel nozzles.  If so, then look at too much fuel pressure or a leaky needle and seat or too high a float level.  If you see no gas dripping, then it still must be a leaky power valve.  The gasket may still be leaking, or the diaphragm could be damaged.  Has the engine backfired?  That can rupture the diaphragm.

John

John - "The Hoosier Hurricane"

A friend looked down the carburetor and he did not see any dripping and the engine did not back fire thanks.

Hi John it says ford on it it is the type with a round top and it goes on 3 studs on the intake