ive never tried to put a 89/90 distributor in 91-95 8v
nor the reverse, i think there will be problems.
housing fit and cam end gear issues.
i remember (if possible 10 years later LOL) hearing others had problems here.
the 91 + is CMP distrb, no vacuum no ,advance in the distributor.
for sure the 89/90 distrib is useless on any 1991 up ECU,
usa years, other countries, super huge more complex, some run 3 distributors in EU. type 1,2,3.
nor the reverse, i think there will be problems.
housing fit and cam end gear issues.
i remember (if possible 10 years later LOL) hearing others had problems here.
the 91 + is CMP distrb, no vacuum no ,advance in the distributor.
for sure the 89/90 distrib is useless on any 1991 up ECU,
usa years, other countries, super huge more complex, some run 3 distributors in EU. type 1,2,3.
http://www.fixkick.com