http://steveo1.shutterfly.com/ This is the guy that I purchased my 78 from 6 years ago, family friend.
Not a Z but still a sweet hybrid. 72 pinto with a 302 out of a mustang I believe. The motor was built strong but paired with a low stall and a restrictive header its not running at its full potential. His cousin will be modifiying some mustang headers and putting in a T5. Really should wake the thing up...
Being that the car ran 14.7's before I wasnt to worried about getting my 78 to keep up, but now with new wheels, intake, headers, and tranny he should be in the 13's... Ill have to work a bit harder.
Enjoy.