Has anyone heard of this form?

[SevenStar]

lien bu gung bu chuan(sp?) - continuous attacking (exploding) fist

what style is it from?

"You ain't got enough calcium to have a bone to pick wit me,
like a Gracie, I'll choke a ***** out wit his own gi" - Rass Kass

[RENEGADE_MONK]

A few shaolin systems have this form Long Fist, and White Crane are two I know of

[Kung Lek]

lot's of styles have a set that fits your english description.

Lien Bo Chuan , linked(continuous) stepping fist
from Bak Sil Lum

Lin Wan Kuen , continuous and returning fist
from Shaolin, also in some choy li fut styles

and so on, it is likely a set that develops fundaments in the style.

Most styles have a power development set and a fluidity set. the "continuous" sets usually target fluidity as the focus. While the "power" sets focus on strength.
Then Da or Jeet sets focus on speed.

what's in a name? :D

peace

Kung Lek