need help fixing a truck
my uncle just bought a 98 chevy 1500 4x4 the motor runs like crap the number 5 and 7 cylinders are dead we did a compression check all 8 cyl are good now when you start the truck it smells like gass and pops alot i just ran 2 bottles of seafoam in it to try to clear it it still pops and dies out and still no power what do you think the prob is
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