Optimum plug gap for Club Car gasoline engine is .28". Go no wider than .30".
The 1976 351 Ford engine spark plug gap is .034. Most spark plugs will come pre-gapped from the spark plug manufacturer.
www.motorcraft.com shows the spark plug gap for a 351 ( 5.8 L ) in a 1993 F-150 as .044 inch
( .044 inch ) according to fordparts.com
i have read at another site that it is around .044
On your 1997 Ford F-250 Heavy Duty , 351 cubic inch V8 engine ( 5.8 liter ) Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of your engine compartment ( it will show the type of spark plugs to use and the spark plug gap )
According to one of Fords websites : For a 1988 LTD Crown Victoria , 351 cubic inch / 5.8 litre V8 engine : ( the spark plugs are gapped at .044 inch )
( .044 inch ) 351 Windsor and 351 Modified for 1978 Ford truck
According to www . motorcraft . com ( no spaces ) the spark plug gap for a 1995 Ford F-150 - 5.8 liter ( 351 cubic inch ) engine is ( .044 inch )
.044 inch
0.044
.035 inch
.044 inch