Automatic to 4 speed Conversion in '65 Formula S

Did a conversion years ago on a 66 cuda. I went with a later (10.5 inch) setup
from a 340 donor car flywheel, bell ,linkage etc. Used a centerforce clutch and
pressure plate this 10.5 has more/better options that the 9.5 inch. I installed
a strut brace( threaded rod) between the fender and firewall that hooks the inner
fender and captures the firewall with washers and nuts on each side of the firewall,
NO firewall flex. Reinforce the Z bar setup if you have a welder. Works outstanding!