I've got a El 302. now is their a difference between hydraulic and hydraulic roller cams??? what one is suited to the efi 302?

other question is are power boss cams any good?

This thread might help you, this question is asked every week mate.

http://www.fordmods.com/forums/viewtopic.php?t=34610

I think if you scroll through the first 10 pages of the V8 shop you'll find a few threads on cams.

The difference is quite simple....
Hydraulic refers to flat tappet cams.
Hydraulic roller refers to roller cams.
5.0's in EB up Falcons are all Hydraulic Roller equipped.

Power Boss cams are just Sealed power cams in a different box.
They work fine and are usually a grind developed by cam manufacturers like Crane. Ive built a few engines using these and strangely enough they degree up better than name brands like Crane or Comp anyway.
You just need a Hydraulic roller type for your engine.

Pete.

thanks for the quick responce.
Just wasn't 100% on the hydro and hydro roller diffrence as people mostly say hydraulic and leave the roller part off when talking about the cam they have in their car.

Thanks again.