X-Head Porting....

DentalDart said

These bulges are the ones you are talking about right?

I dont understand what you are talking about with the gasket match. I thought you're supposed to gasket match it on the head, but to leave the air intake (that mates to the head) port alone. (For home porting purposes) due to the air intake port usually being slightly smaller and the head slightly larger, it will help force flow down the intake on the head.

If any of that makes sense... for what its worth, I wasn't going to touch my air gap intake...

Click to expand...

In the picture that says “blend 60* cut”, just above that and to the right it says “work across the head bolt bulge”...I take that thing out. If you blow through into the bolt hole, you can either press a piece of brass or stainless steel thin wall tubing in there, or, if your block has blind head bolts (it should unless it’s what I call a new block which is from the late 70’s or 80’s when they went away from blind head bolts which was dumb, but cheaper to produce) you can just leave it open.

When I go out to the shop tonight I’ll see if I can get a couple of pictures of what that looks like.