After installing a spare carburetor i recently rebuilt (Covered with dry mud and grease, disassembled, cleaned, unstuck FBSV, installed carb kit and replaced AAP diaphragm, Depression chamber, mixture control valve diaphragm, reassembled, installed and worked on the first try, it's a lot of work, don't plan to do it again), i did some testings on the unmounted working old one, connecting the electric fuel pump (doesn't say the working pressure like Bosch or Master, but for 20 dollars it's nice to keep it in the spare box, i measured 50 seconds to dump 1 liter of fuel, that makes 1.2 Lt/Min 0.317 Gal US/Min) to a "T" fitting to split the unregulated fuel flow to the float chamber and acceleration pump connectors, if you lean the carburetor in an angle of about 45 degrees just like you where climbing a hill fuel starts dripping from the venturi, when i disassembled the carburetor i found a system on the bottom of the float bowl (overfill limiter) that consists of a weight ball that runs on a channel from side to side (driver and passenger) and pushes a pair of levers that lift the float, i guess this is only for rollover events when the vehicle is laid on one of it's sides and won't work when your going uphill, any fancy upgrades to fix this?, i was thinking a circuit to control the voltage applied to the fuel pump based on the TPS output and maybe also a missing pulse detector with delay that monitors the coil so it shuts down the pump when the engine is not turning after a few seconds (still haven't checked the range of voltage where the fuel pump works). When you angle the carburetor like when your going downhill looks like there is no problem, if you lean it sideways it starts squirting fuel from the venturi that stays lower, even fuel comes out from the thiny holes on the top of the carburetor.