small problem with the holley 350 on my slant 6

after a few days of playing around with the engine. I found something that looks worrying, please give me your input / experience.

since the car has spark and fuel we still tried to start the car. It does stay on ONLY when you hold the gas pedal a certain way. it still shakes very rough and sounds loud. my father and me were thinking what could it be? when he decided to take the valve cover off just to see if there was anything wrong because the car was making alot noise and he was worry of a knocking sound. From first glance everything seems in place but when we started to shake a few of the rocker arms push rods - we were surprised that we could lift one of the rocker arm arms off the the valve spring retainer and the pushrod was off its track. i set the pushrod back in place; I think it was pushrod #2. Now i am wondering if this would be my cause of my car not starting and staying on... yes it still not starting :banghead:

hopefully i haven't confused anyone with my explanation. :oops:

any advice on the pushrods, I haven't checked the push rods super carefully since it became dark when we decided to take a look inside the valve cover. why was the pushrod out of the tracking. I wonder where should i go from here. any advice im all ears