Quote Originally Posted by Sabrewings View Post
I'm pretty sure O2 sensors and spark plugs use the same thread. O2 bung plugs might work. I'd just get a set of L36/L26 heads.





What are you talking about? lol I was talking about the injector holes.


And Yeah I already bought some heads with bigger valves...So that def not an option.

Yeah I probably would just use the ones in the head.