Comp Cams 212/212 Flat Tappet Spring?

[OConnor]

I am installing a Comp 212/212 Flat tappet cam. I also have a set of valve springs with these specs
Part#68301
O.D. Outer1.27
I.D. Outer0.9
Installed Height1.750
Rate407
TypeSingle
Color CodeNone
DamperYes
Free Length2.020
Wire Diameter0.192
MaterialSilicone
1.75096 lbs
1.700114 lbs
1.650130 lbs
1.600149 lbs
1.550169 lbs
1.500188 lbs
1.450207 lbs
1.400229 lbs
1.350252 lbs
1.300274 lbs
1.250299 lbs
Coil Bind1.1700
My question is how many pounds on the seat should i set them up at?

 

[turbocamino1]

What i learned when i did my cam study and decision (Bullet cams) is if you want to shift at x RPM and control the valve train events, you need X amount of spring pressure...i think there was a mathmatical equation involved? but..long story short... my 212 flatty should, could make power to around 5800...(or at least with my combination)..so to control that, i was told 120 seat press. Thing is...not many will advise to put that load on the flat lobes...but IMHO ...it seems more of an issue to have the poor control of weak springs letting the lifter slap the cam face than keeping the lifters in full,constant contact with the lobe face.Also FWIW,Bullet suggested they cut more tapper into the lobes than others ....dont know alot about what others may do so...? I bought hardened face lifters... and run oil with plenty o zinc....i went with Valvoline VR1 20/50 and ZPPD. I keep a real close eye on my oil condition and an ear out for anything out of the norm. So far so good for me.

 

[dank GN]

I had comp 980 when I broke mine in . I know have 981 and can rev up to 6k no prob . I Did make sure to have the install Hight was set