Hello all! I’m doing a conversion that I can’t find too much info on so I’ll document the progress here. I have a 1974 series 3 88 and a 1988 or 89 Santana 109 turbo.

do any of you guys have any info on this motor or is it the same as a 19j? Also trying to find any info I can on a wiring diagram. Don’t know if I should go a 21 point harness route or try to source an original

Thanks