Just before reading this I cut the old battery cables out of the wiring harness to be replaced with new #2 welding cable. The oil drain holes were there. Motor and trans are now in the chassis and wiring is under way. I still need to make a bigger battery box and install a larger battery. That is going to require fuel tank removal, and more. EDIT 12/31/21; Most of the wiring is now finished. I cranked it over to measure cylinder pressure. It is now down from 275 psi to 215psi. I'm going the right direction. I'm going to try to get it fired before making the battery box changes. That will allow me to see how big of a battery I need. Now I have to wait on a tuner, so it will be a while.