Question for the masses that are (smarter than me)

[Strike37G]

Quick question about bolt on valve cover (circled). Is this used for any type adjustment or connected to anything or is it a service vacuum port? Wanting to install a vacuum fuel pump and look like a good spot to connect vacuum. Thanks to all.

[Mech]

The way it's angled in it could be a tacho drive option, blanked off, or it could be an oil feed/pressure check point..

It will pretty surely not be a place to get vacuum. You really want to draw vacuum straight off the manifold, that's the black bit on the back of the head, or a vacuum port off the carburetor.

If that make? has a part list online, you could look up the pictures and identify parts, and see if that bolt has anything under it.

[MarkinAR]

It won't be a vacuum port in the rocker cover. Vacuum only occurs between cylinder and fuel source. 

[Strike37G]

Thanks gang. Next down day is Wednesday so I will mad the intake with a vacuum port and report back. This Blaster is so beyond modded nothing is out of play at this pont!

[Mech]

Some carby have a vacuum port...