Hi Steve,
Yup, SV #27 is from Mahlon. I upgraded the shocks/springs, changed the cam, (detuned it for the street) just added webers with turkey pan (see thread on Jim Inglese), changed to 2-5/8" gauges, and more. He did a really good build. There are some pics from Herman (289FIA) with our coupes at Monterey. #27 is on the end.
Thanks, Ron