318 won't crank over- trouble shooting suggestion?

i would jump it at the starter relay first. make sure you have power there. if you have power at the relay and it doesnt crank then its going to be something with the starter, given your battery to block to body grounds are solid and you have a fully charged battery. the starter relay needs to see a ground whether it be the nuetral safety switch, seatbelt interlock (74 and up) or the clutch safety switch. if any one of those are no good, you will not have power at the key.