Do you really want to be a Guinea pig and lead the way or would you rather go with a proven product like a set of Isky #8005 valve springs work
I don't want to be test bed unless the company providing me the parts is paying me to do testing for them.
I have had to try unproven race parts (R&D) in my motors when the parts I was using wouldn't live or do what I needed them to do up work

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)