did not see this comin

[Camper Power]

so im driving down the highway wen all of a sudden the truck backfired and then the engine bogged down. so i pull over and try starting it, nothin. i checked 4 fuel and its gettin through. my dad checked the spark, he says it ain't makin any, i myself dont know how. im hoping hes rite cause i dont hav time or $$ 2 rip apart the engine. anyway how much does it ccost 4 a good HEI distributor, and yes it is already HEI.