Got my heads back from Len Hoffman last week. 1.7 "Q" heads, 42x36 valves, 57.5cc chambers, P&P on the exhausts, and polish only on the intakes. Tapered guides, radiused stems...
BOIOIOIOING 
Len does some fine work. These look like new heads! If you want Type IV heads done right, and don't mind waiting, I recomend his services implicitly.
Gonna need .090 spacers to get a .040 deck, so they are on the way too.
I'll figure out the rocker geometry and pushrod length next, but first I need the lifters from LNE...
