Kid_Again
Well-known member
- Joined
- Jul 6, 2004
- Messages
- 1,171
- Location
- NJ - Which exit you from?
- Corvette
- 65 SB Roadster, 66 BB Coupe
Not sure I saw the following information in this post. I assume you have a Holley carb of reasonable quality. Which port do you have the vacuum hose connected to? Top or bottom? There's a port off the front metering plate and also one on the carb base (ported and unported). Since the idle is now low and there is no difference in idle quality when you pull the hose to the can, sounds like a vacuum leak to me. Is the "other" vacuum port left uncapped? Whatever it is, it's simple to fix.