67resto-coupe
Member
So, I'm wondering how much of a difference a spark plug error could have on my engine's performance. It seems to run alright, but *something* is not right.
Anyway, I think I figured out where I goofed. My roller 5.0 is a "normal" 5.0 bottom end from the '86-'93 family. I thing the last 2 sets of plugs have been
Autolite 764...which I believe is the correct part for that ere of Mustang 5.0. However, my heads are '98 GT-40P heads....and would actually require the correct
plugs for the '98 Ford Explorer 5.0. Duh!
The car runs decent....has a nice lumpy idle from the E303 cam, but I've always felt as if there was just something not right.
I'll get a new set of '98 Explorer plugs this weekend and fit them on Sunday. Until then, do you guys think that the wrong plug can
make that much of a difference in performance - all else being equal?
Thanks.
Anyway, I think I figured out where I goofed. My roller 5.0 is a "normal" 5.0 bottom end from the '86-'93 family. I thing the last 2 sets of plugs have been
Autolite 764...which I believe is the correct part for that ere of Mustang 5.0. However, my heads are '98 GT-40P heads....and would actually require the correct
plugs for the '98 Ford Explorer 5.0. Duh!
The car runs decent....has a nice lumpy idle from the E303 cam, but I've always felt as if there was just something not right.
I'll get a new set of '98 Explorer plugs this weekend and fit them on Sunday. Until then, do you guys think that the wrong plug can
make that much of a difference in performance - all else being equal?
Thanks.