Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
OK, with the engine at #1 compression TDC (you must verify its on the compression stroke), you will need to line the distributor up. There is a dimple on the the distributor gear, and it must line up with the paint mark on the distributor housing (callout #3)
As you drop it in, the rotor will turn, and at its final resting spot, should be pointing to a "8" cast into the top of the housing. You may need to rotate the housing to get them to line up.