Engine miss
I've got a 1988 Ford F150 with a 302
engine in it and I have a spark plug
that's not firing because it's getting
to much fuel, it's the third one back
on the passenger side and you only
notice it's missing once you get
going around 45mph-50 and after a
while it'll start loosing more power
and will die out but will start again a
few seconds later I was told it was a
valve or spring issue... Was
wondering how expensive the part
would be and if it would become
more of a problem or no, it has a
nonfouler in it at the moment but
that's only a temporary fix... Thanks
in advance