hello all ! i'm new here , i'm looking for someone ( or business ) in the cleveland area to tune my 304 in my jeep . i'm .040 over on the pistons and have the edelbrock performer cam, intake , and 500 cfm carb , also have a d.u.i. hei distributer . she runs great ( as far as i know ) but i was told, if i weld in an oxygen sensor bung behind the headers , there is some high tech ways to get me dialed in right where she needs to be... any thoughts or recommendations would be greatly appreciated !