Interesting! What do you do to the carburetor to make it able to use the higher pressure? The electric pump seems to be a pretty good cure all for the fuel pump problem. Thanks!
The amount of fuel pressure a carburetor can accept is defined by:
(1) The buoyancy of the float
(2) The placement of the float pin
(3) The orifice size of the fuel valve seat
Carter used at least different volume (read buoyancy) floats in the various AFB four-barrel carbs (505 different).
By using the float with the largest volume, and a slightly smaller than stock (I cut my own) fuel valve orifice, I have no pressure issues.
Jon
