When it acts up, does it start right back or does it act like it is flooded?

If it acts like it is flooded, you may have the floats adjusted too high in your carburetor. Edelbrock’s design places the float vents low in the air horn making them susceptible to spilling into the venturi if the floats are to high. This will usually show up during deceleration and braking.

The two most common mistakes with Edelbrock carburetors are high float levels and too much fuel pressure. Both will cause a world of headaches. IMHO, no carburetor needs more than 5psi fuel pressure, and no street driven motor benefits from high float levels.