1968 Plymouth Barracuda Fastback (old school build with a new school feel)

I did my initial start up with the Sniper EFI. It ran really well for about 10 seconds while the lifters pumped up. Then a valve lock came loose (my own fault). I shut it off pretty quick, but still made a mark on the piston and bent the valve. The piston is useable but had to pull the head and order another valve.
No big deal, just fix it and run it again.