The Shelby Z i have, i built a 300 HP 8 valve 4 cylinder engine for. Its a little bad ***. Lots of good parts and machining. Fully forged bottom end, o ringed block etc. I pickled it with mercury marine oil and it sits on its storage stand. One day i will build the shelby and test it out.
New update. I used a cutoff wheel like a grinder to carefully clean out all the old cracked seam sealer filler in the drivers side drip rail gutter. I filled it with evaporust gel and covered it with plastic. I will be brushing 2k primer in the rain gutter channel when its all cleaned out to pitted bare metal then i will tape it off and brush on some out of date expired aircraft seam sealer i have. Not good for aircraft past expiration date, perfectly fine for automotive lol. This stuff wont shrink or crack, and is paintable. Meets Mil Spec 81733 for corrosion resistance and adhesion.