273 Engine set up I'm thinking of going with, let me know what you think

Just my take on the Egge pistons. Although the Egge pistons are a duplicate of the original 10.5 design the newly produced ones are 9.5/1 fuel friendly. I'd guess they are made that way on purpose so that everyone that uses them won't have detonation problems. Just my opinion. WHen I built mine I was a bit disappointed they didn't measure closer to 10/1 which was my goal anyway. Mine starts good,idles at 750,performs well, and doesn't ping even with 87 octane if you drive it normal. If I remember correctly, initial timing is around 10*°
all in by 2000 with a total of 35. You can use what ever pistons you want but I would make sure you check the compression ratio. You may have to machine domes or use thicker head gaskets to get a street friendly ratio. It would be a lot of work but it would be interesting to build a true 10.5/1 engine and see how it would run with pump gas. tmm