It depends on which engine you are talking about. For early small block Chevy V8 the firing order is 1 8 4 3 6 5 7 2 with the cylinders numbered odd (1 3 5 7) on the drivers side and (2 4 6 8) on the passengers side.
V-8 or straight 6?
The firing order for a 1967 Chevy Nova with the 6 cylinder (194 or 250) is: 1-5-3-6-2-4
What engine? 250 ci straight 6
153624
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Yes.
Yes.
If it is the same bodystyle, yes
A v8 is 1-8-4-3-6-5-7-2.
The 1977 Chevy Nova came with an inline 6 and a V8. They did not come with a V6. If a V6 has been installed you need to know which one as the chevy engines have very different firing orders.
1 8 4 3 6 5 7 2
1-5-3-6-2-4 same firing order as any Chevrolet in line 6 (aka straight 6)