Check gap is at ~ .0029. Try the BKR7E - I imagine they're cracking because they're too hot...
Sorry, confusing post, first you say leanat 12psi, then rich at 7psi?
Have you upgraded the fuel system?
__________________
'93 Fastback LE - Wrecked
'91 Fastback HICAS and LSD - Sold
'93 Fastback SE - Current
|