Ed Olson has already done it....but a bored out 455...but also a "bored out" TR 6...= lengthened some...but it really doesnt look like a sleeper....but ,really nice....about 1000 Lbs lighter than a bird.
this is the new turbo version...
the turbocharged Pontiac motor hasn't been tested yet, but with a previous 455cid engine this car achieved a 6.02 second, 120mph 1/8th mile.