Rocker Clarification is up!!!

[Alan Roehrich]

Originally Posted by ss wannabee

Don't see why ratio would matter as long as valve lift spec wasn't exceeded...Again, the spring pressure deal "opened" up this can of worms...

Would think though...that MOST stocker cam lobe profiles were created with the STOCK rocker arm ratio in mind....notice that I said MOST...but not ALL...

It's called "area under the curve". Making the rocker move the valve faster than the lobe can with the stock rocker ratio gives you more area under the lift curve.