Got my hands on a 340 bare block with steel crank so I'm gunna be using this instead of a 400. So what's my best head/ cam choice. Keep in mind this is a 21 year olds budget lol so no race heads I want the best head factory wise and a good lopey but streetable cam to match. Idc if I have to take it to a machine shop for bigger valves just best bang for my buck sorta thing.