Sniper 650 EFI Bore Size?

[threewood]

I want to try a taller spacer and need to know what the bore size is for the Sniper. It's going on a Holley SD intake. Looking at a 4 hole spacer as opposed to the open spacer.

Thanks.

 

[pnora]

I thought it was a common 4150 base.

 

[threewood]

I thought base size was the mount flange size?

 

[RemCharger]

What's your theory on the 4 hole vs open?

 

[threewood]

4 hole may add more velocity over an open which just adds to plenum volume. Unless someone has other theories. Which is why I need to know bore size. I'd hate to get something that I have to hack on and would rather find something that is appropriately sized.