Starved For Fuel?

[mfchassisworks]

Some cars respond better or worse than others with the lack of fuel depending on the size of the shooters, accelerator pumps, overall gear of the car and the engine combination itself.

First you must rule out the fuel pump and its capabilities.

If you dont want to run a fuel pressure gauge make a temporary T-fitting install it as close to the carb as you can, get Autometer's copper oil pressure line, and get a small liquid filled gauage and install in on the end of the line. Run it up the cowl to the base of the windshield, under a wiper arm, or 200 mph tape it to the windshield where you can see it. Find a safe place to run through the gears, Then watch how low your fuel psi gets. You will be surprised. If you don't have always have 7psi then you aren't making hp. If you try to tune based off you plugs at the end of a run they will give you a false reading as the carb will seem lean but really there simply isn't enough fuel. No fuel means low hp = low mph.

During the test when the car stumbles or... and you let off note the fuel PSI upon recovery.