Retainers
the retainers you have are light anyway and you actually probably have enough spring pressure to keep the valve trane stable with that cam.
A bigger cam with faster ramps (CC 503, CC 306, GM 847, etc) would want more spring pressure than you have now and a better spring (bee hive or dbl)would be needed.
The light retainer CAN NOT make any HP but if the spring is on the verge of not being able to handle the cam, the weight of a steel retainer can push it over the edge and therefore end up losing power.
I would not buy them unless you plan on a cam swap and need them for some dbl springs.
Lloyd
Last edited by NightTrain66; Dec 24, 2007 at 05:13 PM.
Plus to use the springs your talking about, the heads will need to be cut for the larger locators.
If not I suppose I will get the beehives from PAC and figure out all I need to run those.



