Yea...where are you? I too only have the rear choke hooked up on my car, and it usually starts fine, but I have to manually choke the front carb if its super cold (below zero).

Also...sounds like you *might* only be getting fuel to one carb. Easy enough to pull the float covers and see if there is gas in both chambers.

Where did you last buy your gas? Was it a reputable brand name? The slightest amount contaminant or impurity will leave you dead in the water so to speak. Pull the fuel line and stick it into a clear bottle and pump a little gas into that... water will sink to the bottom. Therefore, a half cup of water in the bottom of your tank can cause a no-start issue right off.

You can also probably see the separation in the float chambers themselves if there is any.

Have you tried starting fluid at all? Could your distributor timing have slipped?

-Matt