70 dart 470 ci drag car build.

Didn't do much today but went over to Tim's for a few hours, he said it was his birthday. A couple days ago we checked my 1st oil filter for signs of bad news and none was found.
I changed my oil and turned up my oil pressure 10 psi today. Tim was up early and blocked my lower emulsions and changed the pv to 4.5 we then messed with the fuel pressure.
It didn't run right after that. I think the gauge is giving a false readings.
So we made a pull and a second and it really wasn't happy sounding so we pulled the valve covers and looked at the plugs.
The problem was number 1 plug was fairly loose. While the valve covers were off we ran it on the starter and everything looked fine but some of lash had tightened up or I didn't get it right when it was on the stand or now the chain has stretched a little and now it's lashed to where it's supposed to be.
I left and tim is working on my distributor because it's advancing way to quickly he's shooting for 24 initial and 30 all in. So we're still working on leaning out the afr.
Other good news all cylinders were at 180 psi on slow starter ( low batteries)
Loose spark plug was a 3 HP loss lol.