I'm running a space between the carb. It's a Edel 600cfm electric choke. Buddy of mine was at the car show and noticed my inline fuel filter is resting on the intake manifold. He said it might be heating up and cause vapor lock.  Ill post a pic later of the filter.

I'm running MSD mechanical advance with a 6AL box.  I have it set up with all the advance timing in at 3500 RPMs.  Initial timing is at 10 degrees and advance is set at 28 degrees. Total is 38 degrees all in at 3500 RPMS. I will check with my light on Thursday to make sure the timing is all set right.

I had the same problem with mine.  It would crank over but like nothing there and I would have to push the pedal down to start.  What I did is ran a steel fuel line then I slipped a rubber fuel line over it.  I made sure the line was not touching the engine.   I also put the fuel filter before the Fuel pump.  So far that has worked better.  If its a really hot day I still have the same issue but its better after I redid the fuel lines.

Steve69

An opposite side is a choke that is not fully opening.  Full throttle forces the choke open which is a starting method for a flooded engine.  If you have an electric choke make sure it is wired to a full 12v source and that it is functioning properly.  Drive a distance that has led to the start problem in the past and pull over in a parking lot and pull the top off of your air cleaner and check choke position.  Also, if there is percolation or leakage you should also be able to see it when the engine is hot - just don't put your face directly over a hot carb - a mirror may come in handy.  Certain air cleaners tend to trap heat and as others have mentioned, a phenolic spacer may help keep the carb a little cooler.  If that car sat for a long time, the fuel that was in the tank may also be causing problems and until you dilute it enough with new fuel the problems can persist.