@bosswrench posted:Doug, I'm sorry you aren't closer to Carson City, NV- we have some mutual interests. Yes- I did start with Corvair big-valve 140s and sawed the log intakes off. Then welded stubs on to accept Webers. Also pulled the exhaust tubes and slant-bored new holes for curved tubes without the notch in them for pushrod clearance. I built maybe 6 or 7 pairs of these things for friends in the SF Bay Area. before the supply of Weber 3-bbls dried up. We autocrossed and a few ran them at Sears Point raceway with some success.
Then I bought the Pantera for my wife and we both started autocrossing that against Corvettes,Tigers and Lotus Europas. Good times.
I saw the Weber modification as just a bolt on to the stock intake log. I had headers on mine. I thought it just lacked cubic inches and was thinking about a Corveight conversion.
I had a pair of Offe intake manifolds that you had to weld on. I never got up to welding aluminum well. I just sold those things a couple of years ago on ebay.
"Great minds think alike?"
It might cause a great risk of danger to the general public if you and I were closer together. Kind of like the "key master and the gate keeper" in Ghostbusters. You have to keep them separated. 
Tom I think those bearings have two holes in the cover plates on them to use a puller on?