Hydraulic or mechanical roller cam

[mustang1969]

I am tring to decide on a cam for my 396 Windsor w/ a 5 speed. I want to get to most out of my dollar, so i am looking at a solid roller, but i have been told they require alot of up keep, having to do the overheads all the time. So i am wondering if smart money would be on a hydraulic roller instead. What kinda horsepower differences am i looking at, and what would you guys recommend?

Thanks for the Help

Chris