i have a 65 vette and there is bulb up under the dash on the drivers side that constantly blinks on and off. any others with this problem?

 

With the ignition on set the emergency brake. Is there now a light on the dash that sez "Brake"? If not we have found it! Now you know either the switch on the emergency brake is maladjusted or there is a problem in the brake system.
If it's not the brakes,start checking your other warning systems,when you find which one is missing you can proceed from there. Something,somewhere is unhappy!
Since neither of my vettes has a flashing light under the dash, another way to fix it would be to trade me the '65 for one of mine!
Good Luck!
Ron