My suggestion is to go to the 848 head. Then if you have the money send it to Mike Kirby at Sissell's, Automotive in West Covina and have him work the whole head over. When it gets back you won't believe what a difference a head properly ported and polished with larger valves will do. It is amazing! There are others who can do the same work with the same results but I use Sissell's when ever I'm doing inline head work. Their workmanship is tremendous!
Normbc9
