You are bad out of time, or maybe you have wired the wires in the wrong rotation. It should be clockwise rotation. Check to see if you have wired it correctly, also if you have removed the distributor and reinstalled it you may be out of time.
numbers are on the intake in front of the carburetor
The firing order is 1,2,3,4,5,6.
Correct.
1-2-3-4-5-6 is the correct firing order.
THE ORDER IS 1,3,5 BACK 2,4,6
A 1993 Chevy does not have a carburetor, it is fuel injected.
It doesn't have a carburetor.
The correct firing order is 1-3-4-2
12v to HEI connection (+) on distributor. Firing order the same 18436572.
look on the intake manifold
Has no carburetor. It is fuel injected.
Lumina in USA does not have a carburetor