With that tunnel ram on there it's a complete nightmare to get that distributor cap up and off. I have to take all the wires off all kinds of crazy stuff it's... it's... no LOL.
I did take the original distributor that came with the 318 that came with that Duster is on the truck now. I just remember it a good 13.7 at the dragstrip so I figured it would do fine in the truck.