Help carb problem

[porknbeaner]

Originally Posted by Gropos01

I have a edlebrock 600 1406 hooked on a rpm preformer manifold. The problem I'm having is when I block all the vac ports except the one I'm using which is my distributor, my motor dies. As long as I have the power brake booster vac open it's stays running. My car has no power brakes so I cap the port and boom my motor dies. I set the idle screw to 2500 rpm and capped the ports I stay running but rpm drops to 1000 rpm and my idle mix screws don't do jack at that point . I have no clue what's going on help

The idle mix screws won't do a thing at that high of RPM. You have the throttle blades open past the idle slots or ports (whatever that are called on an edbroke carb). You are way past running on the idle cirquite.

Have you checked to see if the choke is slammed shut when it does> if it is flooding real bad like folat stuck or crap in the needls valve or the chike is slammed shut then your vac ports hanging open should lean it out enough to run and with then closed it isn't getting enough air to mix with thre fuel.

Check and make sure that is sin't flooding if you suspect that it is an induction related problem and not some other problem. That is where I would start.