desperatly need engine help

im not sure about pushrod length actually, they were just the rods that were used with the cam before this one, it had 435 lift, and this one has 474, think thats enough to do it? im leaning more towards the lifters not being pumped because some of these things were bent a loot more, so maybe those lifters were lowest when put in? it might be a combination of everything too, since i cant verify if the cam was put in correct. all i remember was he put the thing in, then dropped in the gear and spun everything till the slot pointed at cylinder 1