Valve to piston clearance

I dont have adjustable rockers i have factory ones. But I have a bunch of used lifters I can take the guts out of. I also plan on making some light valve springs to do the cam decreeing

Keep an eye out for an incomplete set of 273 adjustable rocker arms and see what kind of deal you can get for them or if the seller will separate two of them and throw in the push rod and lifter for them...