Firing order: 1-5-4-2-6-3-7-8 Cylinder numbering (front-to-rear): Right 1-2-3-4 Left 5-6-7-8 18 mm spark plugs, 0.034 in. gap 1958 Edsel Ranger , Pacer , Villager , Roundup and Bermuda , standard equipment (called "E400") 4V 9.6:1 [3] [9] or 10.0:1 Compression Ratio depending on source of information. [10] [11] 303 bhp (225.9