1-3-4-2 Rotor turns clockwise. You can easily find this out on any engine by removing the distributor cap and turning the engine over while observing the rotation of the rotor.
Clockwise
18436572 COUNTER CLOCKWISE
1,5,4,2,6,3,7,8 counter clockwise
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It depends on the manufacture of the engine.
Looking at the distributor, the rotor goes clockwise. the Firing order OOPS 1342
clockwise
the firing order is the same as Chevy 350 except opposite rotation instead of clockwise it is counter clockwise
1991 cadillac deville firing order
Rotor turns clockwise.
1,3,7,2,6,5,4,8 Counter-clockwise.
The firing order is 18436572 and Distributor turns counter clockwise.