Fuel mix for my 69 Camaro L78

[Zedder]

Good timing on this thread as I am considering building a Sunday driver for taking the family out for an ice cream and am leaning towards a driver quality restored '67 Z. With this particular car, I don't want to mess with mixing fuel etc. and had considered taking the compression down from the factory 11:1 ratio. From what I've read here and on some other sites, this isn't necessary for 91 pump gas? My last Z ran on like crazy when shutting it down and would ping loudly on acceleration - that drove me nuts. Any thoughts on this? Some have said to have the distributor recurved to correct pinging on acceleration. I'd love to learn from some of your experiences...Thanks,