piston & valve question

[Phills450r]

im buying a new JE piston and buying new valves..

which ratio should i run with a stock bore 13-1 or 11.5-1

also i need all new valves where can i buy a good set for a decent price?

thanks

[gimp419]

The Compression depends on if you want to run race gas or not. 13:1 means race fuel only.
As for the valves get some stainless Kibblewhite valves with titanium springs you don't have to adjust these as much as you do the stockers and they are a nice upgrade to match the piston.