RB Back fire

swedefish said

I assume it have to be unburned fuel getting through the exhaust.

What can cause this?
A bad plug wire so that the spark jumps to the block or the head instead for to the spark plug. A damaged wire of the heat from the headers
A bad or jumped timing chain? But that one is new! Not only new, but it has a double timing chain!
A bad coil ?
I`m thinking loud here, as you may notice....ok,ok maybe I shouldn`t LOL
Doesn`t it have to be a missing spark that causes backfire through the exhaust?

Click to expand...

i was talking to my Uncle who is a mopar freak, He said it sounds like it might not have enough fuel, He said if it was too rich, there should be some smoke coming out of the tail pipes. I thought this seamed weird, I am going to go outside and test stuff shortly.

The wires are all new, and are not touching any headers. They all look great, I will spray some water on the wires to see if I can get them to arc, but I don't think that will be it

maybe it is the coil. a couple people have mentioned that.

Phil