Long Island Imaginary Raceway

[jd88x89]

Hey. So I've been trying to work on another track, one that i have drawn in my spare time between schoolwork and racing. The track doesn't exist in real life, but i sure wish it did. Anyway, I need help. When i added height and elevation to the track it winds up like this:

any help would be appreciated
Also when i do the height part, for some reason there appears to be a cliff between parts of the track when there shouldn't

[EVO]

when you edit elecvation select both objects and do edit mesh or poly of both the they should move together.  The issue could b e that the track has more poly than the terrain so the low poly terrain is interring but that shouldn't be an issue if you don't have terrain under your track.  Send me a link i can look at it. I have NJMP but i havent had time to work on it....  its a shame.. Im not really into karting so much anymore been getting into triathlons, snowboarding, and surfing