Firing order is determined at the distributor cap (basically). The timing chain will determine valve timing. Anyway, check your distributor before you start tearing into the engine.View attachment 1715115095
Ok i see what you guys are saying , My car is 67 dodge dart , i got it from the second owner. At the time of purchase , the engine was smoking like a train lol. I drove the car about 30 miles and everything ran fine. But like i said the engine was smoking bad , so i had it rebuilt . After the rebuilt , we installed the engine back in the dart . I did Input that exact firing order and the first issue that came up was low spark. So then the engine did not want to crank order or start. So i ended up finding an mechanic that used to work on old cars. He told me " i bet i can make your car run " , so i said "ok, do what ever it takes" . He ended up taking my distributor one night and came the next morning. HE said " i Modified your distributor". So we installed the distributor back in and it fired right up !!! What how ?! I still have NO clue what he did to it. The Dart Runs and Drives now BUT i Feel like something is still not right with it , i feel like the car has no Power and Sputter a lot .When i try to hit the gas hard , the dart just dies . I'm thinking maybe my carburetor is going bad. The next step is buying a new carburetor and if the dart does not run smooth after that , i have not clue what to do next.