Valves

[3W Hank]

I has not been doing this engines before but if one use a heavy adjustable solid lifter and thick head valve say at 300 grams against say 100 it cant be bad for following the cam profile.
I dont think one can get much out of the springs ( if use the Isky 185-G ) so that was my question to Mr Isky what he thought, and the 185-G is at 2” 85 LBS.
As I 'might' heard on the 425 E cams Chucks idea was his nose top design would be gentle for springs.
I can’t say if less or more needed from installation pressure ( 85 ) or the compressed pressure.
But if one is use a 32 cam might be stiffer as a cast cam, but steel is strongewr and idea of rew is 6K.
So I dont whats needed on nose and installation, but I do think less moving weight helps, atleast some. This aplication if a stiffer spring might not can handle 100 or more anyway just cause the cam in pan..

As I build vintage ideas/parts it will not be a fat steel cam and .520 in lift on roller lifters and dual springs.
I will not ’dragrace’ this coupe but like the idea it can rew 6K.
Going light on moving parts was possible even way back and Zephyr springs and .400 cam was out on market.

-The old guys used this parts on salt or drags, is there any information what pressure they used and valves ?