I'm looking to find someone that I can ship my 57 Distributor to for timing advance check/repair or adjustment.  With the timing light and vacuum line connected the timing advances when rpms are increased.  However, under driving conditions there seems to be a hesitation pefore the engine accelerates.  Timing is set 10 deg BTC but I have tried higher and lower settings with no improvement.  No vaccum leaks and carb has new rebuild kit.  If I could just eliminate the distributor as a problem it would be great.  Please give me a couple of recommended service sources.  Thanks.

Gary

Gary