How can i connect a vacuum port to run my power brake booster if no port on intake?

[55Mach1 10]

I just received two intakes for the motor i ordered i got a Victor Jr and RPM Air Gap just so i can compare. both of these do not have ports on the back to hook up my brass vacuum junction block the way my original performer intake had on my stock 351

 

what do i do in this case?

 

I am going to be running an MSD throttle body EFI, can I grab vacuum from the throttle body?>

[frankenstang 11]

If my memory serves me correctly, shouldn't there be a place on the intake where you can drill and thread. Should be a flat spot.

[chillininnh 21]

The Atomic EFI throttle body has a vacuum port for a power brake booster.

 

http://static.summitracing.com/global/images/instructions/msd-2910.pdf

[PaleRider 12]

you can alos get carb spacers with a port

[55Mach1 10]

ok i had no idea the MSD Atomic has those rear ports. I haven't even installed it yet and my new engine got delivered today so were getting close to the install im just trying to figure this out to keep an eye on the progress with the shop

[jholmes217 65]

you can alos get carb spacers with a port

 

X2, or if the MSD is like some carbs, there will be a large port on the back or side that can be used for either a brake booster or PCV.

[69gmachine 15]

You can also weld a bung on the back for the factory brass fitting. It may be a bit extreme to some, but tha't what I did to keep it stock appearing.

 

You're going to need a PCV port anyway, ad that's how I would use the Atomic rear vacuum port.