Thats why I suggested the 3400 top swap or maybe a 3500. The 3900 engine is complex. The 3400 should run just fine on an early (pre 98) 3100 or 3400 computer because they ran TV cable trans in the FWDs (4T60) which would work great for a manual.
Thats why I suggested the 3400 top swap or maybe a 3500. The 3900 engine is complex. The 3400 should run just fine on an early (pre 98) 3100 or 3400 computer because they ran TV cable trans in the FWDs (4T60) which would work great for a manual.