Just so you guys don't think I never listen or that I summarily dimiss most everything you say I'd like to point out a VERY significant discovery just now courtesy of our own JWG right here at 12V Development.

Two posts down John asked if there was any way to grind off the back of the welds on the butterflies to help in getting them off without breaking the heads off. I didn't think (from memory) that it was possible but I just went out to the garage, reinserted my butterfly shafts, laid one of the butterfly plates on the shaft within each bore. I was amazed to see that with the right, small diameter bur it absolutely could be done! Then with a VERY thin carbide flame-point bur, I found out that it's not only possible but actually very easy with the right grinding bur and some xtra, extra-careful, close-quarter work.

It also appears tho I can't confirm that once these little welding tablets are ground down that it's very likely the butterfly retaining screws could then be removed with a #1 Phillips screwdriver from the top of the butterfliy plate/shaft. I cant confirm this due to mine are all missing (broken off intentionally) and I don't know if and /or how far any welding might have migrated sub-surface. But my gut-instinct after looking at the two I did this on is that the screws will loosen once the little weld-tablets are ground flush with the shaft.

If so this is a HELLUVA find for everyone that would like to do their secondary runners and butterfly secondary inlets.

I'm gape-jawed that this slipped by me or fell thru the cracks as an option when I was removing all my butterfly plates. I was ALL OVER that damn thing trying to find a way. Just shows to go ya two heads are indeed better than one.

Thanks John! You duh MAN!!