Reply to "NEED HELP 351C won't run after new cam"

Crank the engine over a few times. Enough for the fuel pump to prime the carb.

Push the bottom of the accelerator lever under the accelerator pump until fuel squirts out of the pump jets in the primary venturis. Then you know there is fuel in the bowls without opening the sight ports.

Open the sight plugs on the carb. Fuel should run out or at least be at the edge of the sight plug hole.

Theoretically it should "trickle" out.


By far the best way to set the fuel level is to take the fuel bowls off and set the clearances between the top of the floats and the bowls with drill bits.

I would have to check but I think it is 7/32" primary and 5/16" secondary.

That IS the way the Holley factory does it and is THE most accurate.

I can tell you that with that setting the fuel level is at about 1/2 way up the sight plug hole.



IF you set the floats as instructed AND fuel comes out of the annular boosters, then the inlet valves are sticking open. With ethanol in the gas, just about 10 days with no fuel will do that.

You don't need to replace the valves but they will need to be blown out with compressed air (about 20 psi) and you need to verify that they are operating with the rising and fall of the floats.



It does sound like there isn't enough fuel in the bowls.



If you set the distributor in place with #1 at TDC and the rotor is pointing at #1, then it is in right.

Make sure the plug wires are in correct order, you have the matching rotor for the distributor cap that you have.


At this point there are only two reasons an engine doesn't run. 1) no fuel 2) no ignition.

Everything else is "tuning" or as we say, "the Devil is in the details".