Biggest mistake ever- lunati cams
Reminds me of the time I used dual Isky springs back in the 1970's on the factory 1965 273 heads on a rebuild. Put 2 gallons of coolant in the radiator and it still needed more. Pulled the dipstick and found the coolant in the oil. Pulled a valve cover and found the coolant leaking from underneath a valve spring seat. The machine shop cut the valve spring seats too deeply and the spring popped right down into the water jacket. Heads ruined. Went to 340 cylinder heads next, not realizing the loss in compression (open chamber 340 vs closed chamber 273) which resulted in no performance increase in the quarter mile times.
Reminds me of the time I used dual Isky springs back in the 1970's on the factory 1965 273 heads on a rebuild. Put 2 gallons of coolant in the radiator and it still needed more. Pulled the dipstick and found the coolant in the oil. Pulled a valve cover and found the coolant leaking from underneath a valve spring seat. The machine shop cut the valve spring seats too deeply and the spring popped right down into the water jacket. Heads ruined. Went to 340 cylinder heads next, not realizing the loss in compression (open chamber 340 vs closed chamber 273) which resulted in no performance increase in the quarter mile times.
