13:1 Compression Pistons in 340 Small Block

1. It’s gonna be a street/strip motor. Nothing crazy.
2. I don’t care for fuel economy but I’d like to get better then 8mpg
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DodgeMoparV2, you stated these 2 things. Those pistons and everything around them to make them work, don't go with the above.
I know exactly where you are coming from wanting to use those pistons, but I feel you can better achieve you goal without them. And in the long run, be glad that you didn't use them. Just my 2 cents.