Do you mean there is no distrubutor cap and rotor and spark plugs? and
wires and coil wire??

All you need to do is cover all electrical wires and stuff with a
plastic sheet. Get a engine Gunk Cleaner can, and spray all over; wait
for 5-10mins and clean with water. Distilled water may be a overkill.
Make sure you do not start the car for 30mins. After cleaning, I also
spray a can of WD40, on all rubber parts and hoses for protection and
long lasting elasticity. Make sure you don't spray WD40 on belts.