i have a torquer v3 cam .644 intake lift. and awhile ago i had bought some .650 lift springs. my question is is that safe enough to run? or should i get teh.660 springs?

 

I would get the higher rated springs. Thats too close for my tastes....

 

You need .060 minimum clearance from coil bind to maximum lift. Using either the Patriot Gold or Extreme will put you in the safe zone. The Extreme has a higher rate and subsequent over the nose pressure. For aggressive lobes, the higher spring rates are beneficial.

 

I have a similar question, I have a 228r cam, what kind of springs should I get? (stock heads)

 

I have the Patriots good to .660 on my Futral cam... .646 lift on the cam. For the 20 bucks extra I figured it's well worth it and have a little extra room and be on the safer side.