valve spring selection

I went with Comp 933-16 per an engine builders recommendation after giving him my info. *i removed one so he could measure it*

I was able to make a tool out of 5/16 square tube and welded 8 bolts to it mimicking a GM style head so I could use my brothers valve spring tool...worked out pretty sweet.

the old springs were definitely easier to remove than installing the new springs.

but without changing anything else, it ran faster than normal (comparing to up-prepped track conditions). so I can assume I was on the edge of valve float with the old springs.

happy to say I still beat on my brothers 406" 600hp Nova!! but he was having fuel issues with the regulator (so he says).

best of night was 10.93 @ 122.32 1.55 60ft, normally run 10.99-11.02 @ 120