[Walt Fricke]

I have often seen the compromise suggestion of solid mounts for the transmission and rubber (or something not solid) mounts for the engine.

I have never understood how this is going to help with vibration, although it should help with engine/transmission twisting. Like Henry, I'd expect the solid pair to do a fine job of transmitting the vibration, given that the engine and transmission are locked tightly together, so as to act basically as one housing.

I ran my carbureted 2.7 race motor with solids all around for years, and a 2.8 replacement similarly for a while. Never had an indication of dangerous high RPM leanness, and I spun it to 8,000 before I got a torque curve and realized I was better off shifting at 7,600. But my one dyno test did not include the AFR, and the Webers don't have that convenient sight glass.

Doesn't WEVO make semi-solids to deal with this issue? I'm using EFI now so not in the market, but others might want to consider that.