I know this must get old, but I need info on my '89 300 I-6. Here's what I need:

1: What is the stock deck hieght, I heard 10" but not sure.
2: What are the stock valve sizes?
3: What is the compression hieght of the stock pistons?
4: Where can I use pistons for a 302, if the compression hieght is right?
5: Is it legal to remove the first or second cat?

Thank you'll for any help.