What is the point gap for a 1971 ford f-100 360 v8 engine?

I believe for 1970 and 1971 , the point gap for the 360 cubic inch V8 ( 5.9 L ) in the Ford 1/2 ton truck is ( .021 inch / point dwell 23 to 29 ) The only other point gap mentioned for that engine in other years and 3/4 ton or 1 ton is .017 inch