Awesum info Dave finaly got my stock carb issues resolved cuz of ur post. sum goof ball sold me a 88-89 carb but I needed 1 for my 87 finaly got this fuel delivery issue fixed and also have a spare carb with correct internals. sum ppl out there think or assume all thies Zilla s use the same parts wen mny changes were made thru the yrs . My last issue now is this goofy Power Valve not sure how to properly udjust it any advise wld be appreciated?👌