John,

Keep in mind this procedure is mostly done in high performing race engines. In the OP's case it could be purely unnecessary, but has been utilized on HEMI heads. Chamber softening is where the chamber is laid back and cuts out sharp areas that create hot spots and slows the flame travel down. We all know each combustion chamber design will vary with its efficiency, but from talking with Monte he said its great if you can start out with a head that already has efficient chamber design. Removing area's in the chamber will allow heat to soak in and give more area for expansion. Of course quench & chamber shape are important when doing this. Most importantly its finding someone who has a good program and knows what they're doing. This is typically done with nitrous or other power-adder applications, and "some" N/A setups. My current heads chambers are softened by Slawko. There are several dudes who know what they're doing that have programs for Mopar heads. It all comes down to heat. As we know the whole deal in an engine is the overall combination and managing heat. In my conversations with Monte, he stressed emphasis on being all about timing, valve events, combustion efficiency, ability to fill the cylinder, etc. Man that dude is missed.

Wes