[cfm]

Oh, one last tid bit to put out there since obviously you guys are into performance.

If you purchase good hyd roller parts and set the valve springs correctly, the only reason to ever go reg flat tappet is $$$$. But, wiuth the way these things have been wearing out it really hasn't been cheaper for many people.

Rollers will always make more power over a wider rpm band.

On SBC (sorry to mention those but that's what I work on) solid rollers have lived on the stret for many miles with good parts and the use of 'rev kits.' Rev Kits will keep the roller on the cam lobes during 'lash.' by preloading them.

I really don't like to use flat tappet cams anymore if we don't have to. Especially now with the wear issues.