New Heads. Any Tips

[66StangGuy]

In about 4 or 5 days i will be installing my new heads. they are world castings winsor sr's. 200cc intake runners and 2.08 intake and 1.60 exhaust valves. cant wait to put them on. i already ordered the gaskets that are reccomended by world and think i have everything i need to put the heads on. according to desktop dyno this should put my motor into the 400hp range. i know its just a program but if you saw these heads you would know that they flow like a river. so my question is any tips on installing these heads. they are used heads cast in 96 but only have 10,000 miles. came of a 12.20et 65 mustang. heads also came with used head studs. should i use these again or buy new head bolts. or should i get the arp head bolts. not sure if the studs already are arp. also the heads have erson cams roller rockers. still has all the springs retainers and all that good stuff still on the heads. any advice would be greatly appreciated. anyone else have these heads by any chance? or heard good or bad about them? thanks guys.