Found a JDM H22A head. Crower springs, rods, and the stock JDM camshafts. Only was ran for 1,000 miles. Spent 500 on it. It is in pristine condition. Good deal?

Right now I running a 01 prelude with JDM ecu from a 4th gen. Stock pistions, springs, etc. What kind of HP am I looking at here? I'd assume like 5 just from the JDM camshafts. Correct?

Also, will this change my compression to 10:1? I know I need a new gasket. Do i need to do anything else because of the compression change?

Cheers,
MadTown