Just got off the phone with Lunati. Told them about the 100lbs @ 1.7" and 325lbs @ 1.25. He didn't like that much. Said it was much too low on the seat. I also just did the math and it would be 75lbs @ 1.75" installed height which is not good. It also means that the spring rate is 488lbs/in which seems wrong. I'm just hoping that the seat pressure is incorrect. I do not want to float these valves.
Lunati also said keep the springs under 100lbs seat and 270lbs for break in. I hope my stock spring will fit the newly machined head since they're perfect for break in @ 60?lbs seat and 185lbs open (on the stock cam's lift).
Scrapiron - it wasn't 300lbs on the seat. It's 75lbs on the seat, 325lbs on the nose. It's a flat tappet. What do you mean by "pumping up" at 5800?
69 Buick Special Deluxe. Intercooled Turbo Chevy 250 @ 15psi on a stock long block. It's kinda fast.
