Depending on the diameter of the wire used you may need a receiver groove in the block to make the O rings work correctly Most of the new Fel Pro race head gaskets come with a built in stainless steel fire ring enclosed in the gaskets, your suppose to use a receiver groove on them also, most racers don't
The new Fel-Pro gaskets that are absolute garbage? Those Fel-Pro gaskets?
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.