[mrmustang]

Ok,

Let's start with the basics....First off, the 750cfm Holley vac secondary carb is probably not your best choice in fuel managment. Your going to be better off with a 650cfm Holley double pumper to feed your engine. Second, you cannot fill the fuel bowls through the needle valve orifice, as you will most likely damage the idle curcuit in the process. If you think your having a fuel delivery problem, pull the fuel line off the pump, stick it in a bucket or large glass jar, and have a friend crank over the motor, if fuel is coming out in a sufficient volume (you'll know it when you see it), then this is not the problem. Get me the numbers off the side of the choke horn, and let's see which carb you actually have on your hands, you might find that it is not what you think it is, as is a common mistake. Will await your detailed response, and we'll go from there....


Sincerely,

Bill S.