Correct firing order for a 318

[72valiant]

Hello, I've recently replaced the wires on my 1972 Plymouth Valiant. The engine is a 318, and I'm wanting to double check that I have the correct firing order. The engine seems to have less horse power than it did before I changed out the wires. Can someone please help me out?

 

[crackedback]

18436572

If it's backfiring at all check the 5 7 wires for being crossed... VERY COMMON.