No, you have an aversion to things you don't understand, and you don't seem to understand that technology has improved in the last 30 years. Newsflash, it has.
And recommending a sof-lok for a street car with a stock 273 is total lunacy. The car we're talking about will at best have a "warmed up 5.9". Pretty much anything off the shelf will be sufficient. Even the clutch and disk I'm running is good for 500hp and would be totally overkill for the OP. A good old regular McLeod diaphragm clutch with an organic disk will last 100k miles in the OP's car.
