Ok, I recently have had some issues with my HEI and decided its time to step up a little and I was thinking the e-curve would be nice! I like the easy adjustments! I'm pretty savvy with electronics, so I don't think it would be to difficult to set up, but the components is all I would worry about. I'm sure you could use some dielectric grease to help some. Anyone have good results with them. Also I thought I read somewhere though that you had to change the cast iron gear out if your running a hydraulic roller cam? I have a hydraulic flat tappet would I still need a different gear or is the cast iron compatible with a flat tappet? Thanks for your input!