On one of the 69's, SS-350, stock as a rock except for the exhaust system, has a minor problem that so far has gone unsolved.
The engine runs great...I can actually idle it down to 450 arps and it still runs.
I recently rebuilt the original Q-jet and it too performs beautifully, except cold-starts take about 10-12 seconds of cranking before she fires right up. The choke is operational and is doing what it should. She hot-starts at the touch of a key.
Tonight I'll check to make sure I'm getting good spark during a cold crank, but I'm 99% sure that the ignition system is fine...it's all new except the stock distributor...and I do have the Petronix Ignitor which has worked great (no, it's not the Ignitor II which requires a little different cranking procedure...so I'm told).
I'm sure most of the fuel evaporates from the fuel bowl after a car is shut down...but why is it taking so long to get fuel back into the carb on cold-starts? Fuel pump? (the fuel filter is new though I like to forget...it only cost $35).
Any other ideas for diagnosis? Thanks in advance.