360 out of a 1977 RV

Your going to have to replace valve spring know matter what you do if your doing it right ... I would put a different cam then that one make it worth your while but that's just me . I like this cam for close to stock applications I had one on my stock 73 340 worked well for me. https://www.lunatipower.com/Product.aspx?id=1544&gid=287