I've been developing this '71 Z for about 5 years.  It is a track day only car that has so many modifications, it will never be a stock car again.  A few weeks ago, I blew my Rebello motor and now I think it may be time to hang it up.  My question is whether or not to sell it as is or part it out, or what to do.  As you can imagine, this car has lots of dollars invested that I know I would never get out, but someone looking for a great track day car would be able to get it fully developed, at a steal.  Have not set a price yet, I'm still in mourning.

The engine was rev limited to 7400 RPM but I set the shift light at 6800.  Just like all race motors, it was running great till it blew up !

Thanks for everyones replys and advice.  All good. Jon, I appreciate you being the first to suggest the V8.  Over the years, I have thought of that but have resisted on purely sentimental grounds.  Maybe now is the time to reconsider.  Heck, for the money I could get out of the Mikunis and a few other parts, it would be a wash.  Trouble is, I know nothing about this type of mod.  What engines are best, what transmission do you have to go to, etc.  I'm sure HybridZ will have much to read. Are there any reliable and thorough treatises on this topic ?  Thanks again to all

There are many, many threads on the subject over at hybridz.org. I only became a fan of American cars around the time the C5 Vettes came out. Prior to that they hadn't made anything I would buy for the last 30 or 40 years, so I don't have a whole lot of expertise, but I can say that any of the newer LS based engines will make good power compared to your L6, the T56 transmission is heavy but durable for 300-400 hp, and John's Cars makes a kit that seems like a bolt in deal. Always happy to answer questions if I can, I'm pretty new to all of this though...