Despite others declare of a 20HP or more maximize- on modified heads by itself, this is solely extremely hard without camshaft or pistons transformed. Toyota has casted and machined all their four valve heads to pretty shut and accurate tolerances for street (and rally) use. Good day all! Only to https://rafaelhgeeb.blog-ezine.com/26827925/the-basic-principles-of-toyota-4age-for-sale