Slant 6 Turbo 68Dart Project

the white stuff should work. the drip may have been residual oil from the failure. not showing on the dipstick is odd. i would get to the bottom of that fast. ive been usuing the Fel Pro 2104 carb gasket. had my hat on and off more times then i would like to think about and it is still sealing good. not sure i would have had the same result with an o-ring.

is the accelerator pump working? is it pissing down the carb throat when you hit the gas?

here is a pretty straight forward video on how to adjust the float. if its off it will stumble off idle and take a while to start to rev. its easy to do and makes a huge difference.

[ame="http://www.youtube.com/watch?v=ge-mIk6nEYQ"]How To Adjust Fuel And Float Level On Holley Carbs - YouTube[/ame]

not sure about the springs in the bov. boost holds it closed and vacuum opens it. if it doesnt hold the boost then you need to crank down on the adjustment to over power the initial vacuum. it should be getting its signal from the bottom of the carb or the manifold. not ported vacuum.

is your boost gauge vacuum and boost or just boost? your boost gauge should show what the motor is seeing (i.e. manifold pressure) so it should be moved to below the carb. not sure if you have a 3/8" vacuum port on the base of your carb or not but if you do pull the nipple out and tap the port and use the hardware that came with the gauge to hook up to that. if not tap into the manifold somewhere.