Installed height is 1.800 and seat pressure is 165 lbs. Valve lift with the 1.65 rockers is .641 and .645 which results in compressed heights of 1.159 and 1.155. Coil bind is 1.100. Spring rate is
367 thus open pressure is right at 400 lbs. both valves. As I said the heads are done. Jim Robertson did them and they have T&D shaft rockers in them. I have checked this board and others on the net re coil bind clearance and as usual answers from the worlds experts are all over the place. Hence my asking here. I'm hoping some people like Tom S., Cliff Ruggles, and Tom Vaught, and a few others, will see this and respond to it. I would call Jim Robertson but hate to bother him. Jim Robertson built the heads for a cam with only .026 and .023 less valve lift than the cam I am going to use now so I would think I'm OK, but I'm a carb guy not an engine guy so appreciate hearing from those who know these things.
Exhaust is .055.
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