Would this cause a major vacuum leak?

[Harlow]

After reading 69chargerR/T's post I decided to take a closer look at my carb, which I haven't payed much attention to lately. I noticed that for some reason I didn't have the vacuum advance port on the base of the carb blocked off anymore. Would this cause performance issues after the rpm picks up?

[Back N Black]

Yes because its ported vacuum,as the throttle plates open you create a vacuum leak.Of the gas no leak should idle ok.

[Harlow]

Thats what I was thinking. I've been able to get it to idle very nice since I've changed the engine around, but it didn't seem to have much power at all.

[firefighter3931]

All vac ports need to be connected or blocked off....otherwise you will have a lean condition. 


Ron