Hi all,
As I am one of the NA hp desperate seekers, I came across blox racing's f20 high compression valves. Basically they are designed with a flat bottom in order to increase cylinder compression and they are lighter than stck valves.

Has any one tried them or know some one who did?
Your feedback is appreciated

 

I don't know about those valves, but I'm thinking you would have to run racing fuel all the time if you raised the compression much higher than the stock ratio. You probably need to post this question over in the naturally aspirated forum.