should i pull the plates?
 

My 64 gto has the original motor I rebuilt 2 years ago.I took off the afb carb and have a holley 750 mechanical carb on it now.My problem is sometimes when Im driving in the city stop and go traffic it will stall and be hard to start .Or if I turn it off, say at a gas station it again will start hard.Today I had to have it flat bedded home because I couldnt get it to go.I even let it set for 2 hours.Any suggestions please let me have it .Should I be thinking of other carb options?

What have you checked on it, when you say its a hard start, is it firing and just not catching, or is it just no power.When it does not start if you pump the pedal do you get a squirt of gas in the carb.

if i put the pedal to the floor sometimes it starts then its fine for a little while but it soon happens again i know it has to be fuel related like it gets flooded

I know this seems trivial, but have you checked all of your fuel line connections? I had a car with the same symptoms that actually kept getting worse to the point I couldn't even get it to stay running after start, took a lot of cranking and pumping to start, etc. I had a section of rubber fuel hose for about 4 inches and it was cracked on the back side where I couldn't see and was pulling air instead of fuel. You may not have this, but checking is easier that changing parts. Hope it's something easy. Michael

thanks micheal i will certainly look.the car was restored in 2004 .ill check the entire fuel system it has a vented gas cap that i know so far

Check for a fuel line close to an exhaust part too. VAPOR LOCK!

Tom V.

Mr Vaught, I too suspected vapor lock . Does this condition sound like what is plaugeing my car? What else can contribute to vapor lock? Thank you for your reply.

maybe the choke is sticking?

sounds flooded - did you adjust the float level?