A great Mopar mystery (at least to me)

[nm9stheham]

Try a large GM type grommet and a PCV to go with it. Fram FV191 will work with the larger grommet.

BTW, you need some spark plug wire spacers between the spark plug wires. Tie-wrapping them together like shown is an invitation to crossfiring.

 

[68Dartdude]

I will give it a try. Yes agreed about the wires. Thanks...