This was the first thought in my head when I read the first post asking the question. Getting in touch Tom, our board member dealer of Molnar products can help with the compression ratio with the piston selection with the kit. Ultimately the C ratio should be under 9.0-1. Only because this provides a safe ratio to run NA and boost later with a reasonable cam size unde NA and boost later which is another salad bowl of worms to contend with. But the ratio isn’t so high to start with like you would do a NA build with new considerations to boost later.