M-22 "rock crusher"
M-22 "rock crusher" ... In 1967 when you ordered the L-78 it automatically came with the M-21, the M-22 was an unadvertised option ($$$), it was tough enough getting the L-78 in 67 as it really did not become available until after January. Changed out the M-21 for M-20, picked up almost 0.4 sec. running NHRA Pure Stock with just the …