#3 spark plug????

[mred]

#3 spark plug is fuel fouling after 3 sets of plugs, new cap&rotor 2 diffrent msd boxes,plug wires, and a compression check
1-140 :confused:
2-140 :confused:
3-140 :confused:
4-140 :confused:
any ideas
Ed
p.s. carbed

[D-MAX15]

what are the plugs gapped at?