Engine running

Started the engine yesterday, but was not sounding right. When connecting the spark plug wires I crossed cylinder 5 & 7. Basically wire 5 was on cylinder 7. In the first video you can hear the miss. The back fire at the end of the video signaled time to shut it off and see what the problem is.
 In the second video,  the firing order is correctly done and the engine is running much smoother. No oil leaks or water leaks.
We have a antique show coming up in a couple of weeks.  Good to have this engine done.