“Driving ALL 3 School Buses… Which One Should I Keep?”

Wentard fusion Engine Cummins ISB 6.7L-Diesel inline 6-cylinder Transmission Allison 2500 pts Gavril HeavyStar Engine Bummins 8.9L-Diesel inline 6-cylinder Transmission Allison 2500 pts Gavril MD 70 Engine Belasco-Diesel inline 6-cylinder Transmission Allison 2500 pts Comment down below on which one I should keep.