W2 heads I think they are ready
I've been running a set on my Scamp with a 360 on the street for years. They run great and have not had any problems at all with them. It will pull to 6500 with no problem but with a stock bottom end I don't go there often or any higher. I used to run them on my dirt car when I raced. I went to the W5 heads on the race car and the W2 got street duty. The race car and W5 heads are long gone. I did find a dual plane manifold a few years ago and it made it much more street friendly.