http://www.himodel.com/en/rc_catalog/asp_p2.php These people are on the China coast west of Korea

www.justengines.unseen.org They are in England

Shipping is around $12 for either place. My experience has been that they come about the same as from Tower or Horizon and better than Hobby People.

The ASP and Magnum engines are pretty much alike. The major difference would be in the 2 strokes where one may be ABC and the other Ringed.

If you order from Peak or HiModel there's no guarantee that the engine will say ASP. It may be ASP, Magnum, Sanye, or SC. These engines are all made by Sanye and are identical except as described above.

Sanye also makes the Evolution two stroke glow engines