It should have no inference with spark plugs, and it definitely shouldn't have any inference with #3 as the dip stick goes though the first loop of headers/manifold so it would be closest to #1 plug (but out of the way). Make sure it fully pops into the hole, then it bolts to the first top header stud or bolt.
Then enjoy actually trying to use the dipstick, you got to bend and guide it back into the tube with your hand when checking oil
. Can't believe a vender hasn't come up with a new tube/dipstick yet.
86 Fiero GT 4spd - L67 swap: VS cam, GenV. Needs exhaust (ETA 9/13) Build Progress
98 GTP - Some mods