According to one of Fords websites :
For a 1966 Ford Mustang , 4.7 liter / 289 cubic inch V8 engine :
( the spark plugs are gapped at .035 inch )
.035 inch
gap is 0.035"
.035 inch ( according to motorcraft . com )
I will post a link for a Ford 302 V8 Wiring diagram. The 289 is exactly the same.
According to one of Fords websites : For a 1967 Ford Mustang 289 cubic inch ( 4.7 liter ) V8 engine : ( The spark plugs are gapped at .035 inch )
I have a set in a 1966 Ford 289 2barrel engine.
The point gap is 17 to 19
what is the gallons per miles city/highways in 1966 mustang 289 v8 engine 3 speed manual transmission
C = 289 CID (2V)K = 289 CID (High Performance)A = 289 CID (4V)T = 200 CID
289 with 2 barrel carb has 200 h.p.289 with 4 barrel carb has 225 h.p. 289 High Performance has 271 h.p.
2barell or 4 barell carb
the gap should be 0.034 in or 0.86mm