Here's drummerworld forum member Derrick Pope heel-toe lessons.
Start from there and practice. I've done it two years ago (it wasn't with this lesson though) and I can achieve good speed with my right foot and now (since I have a double pedal) I'm working on my left foot to obtain the same speed and being able to play the double bass heel-toe method ( like Marco Minneman).
BTW, there's two different method for double bass heel-toe method.
RF heel - LF heel - RF toe - LF toe
or
RF heel-toe - LF heel-toe (that's the one I'm practicing now).