Dear Juan Manuel,
I bought my first 1974 Pantera L in 1988 when it had only 2100 miles on it. It was quite sufficiently fast. I now have a 485 hp engine, which is significantly faster. How fast do you want to go? How serious are you about keeping a 36 year old Cleveland engine with a plastic timing gear completely stock? Do you expect to display it or do you expect to actually drive it?
To answer your question another way: assuming that you do keep the stock engine completely stock and well maintained, then you will be able to run with the other Panteras, but you won't be at the front of the pack nor will you be back with the stock Miatas.
Warmest regards, Chuck Engles
PANTERA INTERNATIONAL
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