That’s very true, none of rhe aftermarket aluminum heads are what I would call bolt on and go. It’s better to buy bare sets and get .001 o.s. stem valves and have a reputable shop do the guide and seat work. The concentricity and guide work on the mass produced stuff is usually pretty poor. It’s always best to go with as much cylinder head as you can afford to, within reason. Then if you want to reach for more power, it’s usually just a cam, gear, and converter change. The ez streets would be fine for this build, but a set of performer rpms would be a noticeable step up.
