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2.5 L firing order is 1-3-4-2 4.3 L firing order is 1-6-5-4-3-2 On both engines the distributror rotates cclockwise.
Clockwise
Looking at the distributor, the rotor goes clockwise. the Firing order OOPS 1342
18436572 COUNTER CLOCKWISE
1,5,4,2,6,3,7,8 counter clockwise
It depends on the manufacture of the engine.
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.