Ticking in the valve train

I have just got my 340 together and have been trying to adjust the valves so I can start the break in process. I've only let the motor run for 30seconds to a minute each time I start it because I'm scared I'm going to chew the new cam up. I'll do my best to exsplain what I have. Stock rotating assembly but bored thirty over. When I bought the motor it had already been rebuilt. I replaced the x heads with edelbrock rpm aluminum heads and used the same aluminum roller rockers and shafts an push rods. It had a tick to it before when the other heads (x heads) where installed. There are also some spots where the top of the valve springs are just barely hitting the spring pocket on the rocker arms. Also the rocker arms have no numbers or identifying marks on them neither do the push rods. The cam is a lunadi voodoo with a .513 lift (can't remember duration off hand). When i adjust the rockers to have a quarter turn of preload the motor is so tight it won't start. Also the adjustment screws on the roller rockers are a pretty good ways out from the locking nut. Can someone point me in the direction to the correct rocker arms and push rods. This set up I'm using now is just not working and I'm getting very frustrated. Ha ha. Any help will be greatly appreciated.