That is .054.
.054
According to one of Fords websites : For a 1969 Mercury Cougar ( all factory available engine sizes ) ( .035 inch spark plug gap )
plug =ACCR43TS 1995 SIERRA 5.7L V8. PLUG GAP= 0.90MM OR 0.035 INCH.
The spark plug gap is .054"
Spark plug gap is .060
plug gap is .060
The spark plug gap is .054"
Spark Plug gap .044"
The plug gap for a 1995 model, 85 hp Suzuki outboard is .039 in.
0.054 for the 1999-2001, others not sure.
the gap is .8
gap size is .043