It is slotted plug at the end, towards the top of the pump. Please, follow waggin's advice, as you will blow the pump seals.
Don't ask me how I know. :D
I will check that out Jerry thanks! That should be easy enough.
I have read some posts about a regulator on the back of the instrument cluster, and wasn't sure if it could cause this symptom.
Yeah, once you reach a certain level of camshaft, it becomes mute. I just sold my DC race distributor, that didn't even have a vacuum advance.
My new little 318 though, I have it hooked up, and like it's manners. :D
No, they are un-related. The VS carb, is depending on engine vacuum to open the secondaries on demand.
The vacuum advance, depends on engine vacuum to determine the advance of timing.
Same here, had the chrome box for years, never an issue. Used to race with a gold box, never a problem. I do have an orange box on the shelf, but have never plugged it in.