Sorry Bob, not doing any manifold mods anymore.  If you have some time, you can do it with a die grinder and a hacksaw though...

Yes, I think that is a support bar for rev kit springs.  I've often thought about doing something like that with my intake adapters, but never gotten around to it.  I think there would be an advantage to running a rev kit with solid roller lifters; the general theory is that the lash take-up on each cam revolution is what is hard on the lifters, and keeps them from lasting as long as hydraulic rollers.  If you had a rev kit on a solid roller engine, the lash take-up would be between the pushrod and the rocker or the pushrod and the seat in the lifter, which I think would be much easier on the needle bearings and roller wheel.  But, maybe the lash take-up being moved wouldn't completely solve the problem; there would still be a shock on lash take-up.  Guess I'll never know until I actually try one...

It might be the difference between a new carb and an old carb.  Carbs will warp, develop internal leaks that affect performance, etc.  The 850 may just need to be gone through.  Also the 850 is a race tuned carb, whereas a 950 (which actually flows more like 800 cfm) is more street oriented.  The A/F numbers don't make sense, the 950 should be blubbering rich at 10:1.  Could your wideband be off Harry?  Maybe needs a new sensor or a good calibration?

Some good information in this thread, and a lot of nonsense.  Let's keep it on topic guys...

That Offy 360 is a single plane, not a dual plane intake.  Not a great manifold, in my opinion.

Alan, years ago I did what you are considering successfully a few different times.  But I would always run one of those "dingleball hones" through the lifter bores and check the fit of the lifters in the bores before I tried it.  In one case I remember I had a couple of tight ones, and ended up using a brake cylinder hone to open up those two lifter bores until I was happy with the fit.  I just did it with "feel" on the lifter to bore interface, with whatever oil I was using; I did not have the tools back then to make any precise measurements of the interface.  But it always worked.  If I were you, I'd risk it...

Car looks great Cory, congrats on a job well done!