5 or 6 bolt Oil Pump, Help ASAP!

Use it dude. The 6th bolt was added in an attempt to slow down the oil leaks around the pump. Hope this helps.

Actually the early OEM pumps were 6 bolt, and the aftermarket pumps are 5 bolt.

Just a FYI. the factory pumps had a 5/8 inch thick rotor, where the replacement pumps, have a 7/8 thick rotor. So the replacement pumps are a high volumm replacement. If you get a high volumm pump (which is not needed or really wanted), the rotors are either 1 inch or 1 1/8 (I forget which).