Edelbrock valve spring replacements

Well, I don't want to get into a big argument about beehives vs duals, but I didn't have a great experience with Pac, either - which is why I ended up with Manley springs.

If you don't all know this already, then the trick with beehives is to shim them to within .050"-.060" of coil bind so that the springs dampen each other when they are compressed. This is vital, as Beehives have no inner damper and rely on reduced retainer and spring weight to help stablise the valvetrain with lower overall pressures.

I saved a good deal of weight moving from a single spring with damper to a beehive. However, this was in part offset by the heavier 1.65 T&D rockers I installed at the same time. The T&Ds have good geometry, but they are quite a heavy rocker compared to others.

The caveat is my engine revs to 7,000 max - most gear changes at the track are around 6,500rpm - so it's not a rev-monster by any means.