Holley Carb 6910 CFM?

[GofastRacer]

You mean take them off and drill and tap them so you can thread a mini into the top of the Vac cap? like a 1/4 hose to 1/8 pipe?
Yep, but less than a 1/4 hose use a vacuum fitting for vacuum hose!..

[78Centurion]

I am going to try and use this or a brass one?
Fitting Size 1: 1/8 in. NPT
Fitting Attachment 1: Male threads
Fitting Size 2: 1/4 in.
Fitting Attachment 2: Hose barb
Fitting Angle: 90 degree
Fitting Finish: Blue anodized
Fitting Material: Aluminum
Quantity: Sold individually.
Notes: Nipple is beaded, not hose barb.
Fitting, 90 Degree, 1/4 in. Beaded Hose End to 1/8 in. Male NPT

[Oldsquirt]

Just buy a HLY-20-73 (http://store.summitracing.com/partde...5&autoview=sku) kit. You get the tops set up for balance tube as well as quick change spring capability. $45.

[GofastRacer]

Ok now make it simple, drill a hole in the cover and epoxy a piece of copper tubing in it done deal!..

[GofastRacer]

Just buy a HLY-20-73 (http://store.summitracing.com/partde...5&autoview=sku) kit. You get the tops set up for balance tube as well as quick change spring capability. $45.
That would be the cool way of doing it!..

[78Centurion]

That will work! Thanks!