only thing i noticed on gap sizes as i've tried narrow to wide is when i would go past 40 on the gaps i would get break up at higher rpms under load (runs)
almost like rev limiter kicked in
bring the gaps down, and no issues
had this experience with various cars/toys too (i know... just my luck)
and i've had this with various ignition setups and various MSD boxes/coils despite the MSD instructions on the wide gaps
latest test was with the MSD7a and MSD8 boxes with the red and blue HVCII coils
oddly the only one without an issue with over 50 on the gap was HEI....
just my experience
right now using Brisk LGS-T plugs so i dont worry about gaps/indexing
screw-em in and go....
|