Engine & Internal - Any experience with Skunk2 Stage 1 camshafts?

Has anyone used these? what gains did you get with your engines? i plan on installing them in a B16A2. Has anyone used these on the standard B16 valvetrain or did they uprate it ( note; i plan on using the stock rev limit of 8500rpm)? Would i have to have my car's management tuned a little for these cams as well?

Tuning with a stage 1 is not nessisary but you will see a bigger gain by doing it. From what I hear a stage 1 isnt even worth it. I would go with a stage 2 or 3 and you have to upgrade springs, retainers, and tuning is nessisary.

so if i went with Stage 1 cams, would i have to upgrade my valvetrain (ie springs and retainers etc)?

Not required but it isn't a bad idea either.