318 issue! S.O.S lol

Hi all! I went to see the 71 scamp I want to buy again...and this time the car was having a little issue I think I know the answer to....but need confirmation...

first time we ran the car it ran well but it rumbbled a lot and made this excecive rumble...

now today he had problem with it turning offon him when he steps on the car...

ok so...knowing the carb...does inject fuel it might be the problem isn't that nor the fuel pump...it idles fine its just when I step on the gas while on drive or when I step it all the way down...it stops...

so im guessing its no electrical problem. I don't think its the resistor neither...nd car doesn't over heat...

so then it hit me...when I hadmy slant six dart...it once made the same excesive noise...like it wasn't firing right nd noticed a cable was unplugged...

knowing that...it gives me s trong feeling...that with a ttune up...the car will be bak to normal nd won't turn off when I step on it....am I right!?

it looks like oil also leaks from the valve covers gasket nd one of the wire looks et from it...so that is the reason one cylinder aint firing?

nd the guy barley drives it nd doesn't know much about mechanics...hasn't gave it a tune up in a looooooooooooong time.

if im right...ill be so frikkin happy bcuz the few seconds I drover after it turned off I felt like laka baaaaaaddd booooyyy hahaha

btw! yesterday I posted my ex 74 swinger on craigslist.org and itdnt didn't las more than 5 hours nd it got sold! im freaked out...first time I sell a car! yay! lol