From a rodders perspective I'd say you can't go wrong with a Studillac. The Cadillac engine was the engine of choice for these cars early on before people stated putting sb Chevys in everything. Of course twin turbos on that 350 would be nice too.

I don't think there's an advantage to be had putting a Studebaker engine in the car with all the modifications that have already been done. The 289 Studebaker engine was a pretty good engine with about the same dimensions as the Chevy but it won't be as fast as the 350 you have in there now. I don't know if there are any big block Studebaker V8s. If there are I haven't heard of them.

I guess it depends on you. Are you a purist or a hot rodder?
I think we know wich one you are Pat.
Would a purist have STU COOL on his license plates?
AL