[Formulajones]

Originally Posted by scott70

Smaller on the spacer?? The bores on the intake primaries are pretty much stock from about 12 to 3 oclock on the right and 12 to 9 on the left. And the secondary holes are stock in the back part. Pretty just went from the factory holes and blended the sides. If you look at the left primary you can tell the grinder never even touched that at all around 12 oclock position. Hopefully didnt lose much on the throttle response.

On the primaries I leave the thickness in the center divider with blending, pretty much like Jim Hand did it, and taper it in larger as it enters the plenum. The divider quickly tapers in to a skinny center divider between the secondaries. I do the same with a spacer. Shoot me an email and I'll send some pictures if you want to see it.

Not that it's a big deal. I've done them the way you have it too and don't notice any difference, it'll run perfectly fine like that.