not auto tech enough to be able to answer.....when he bought the car it was delivered with the engine in about a dozen different boxes....somebody had been doing a restore job and had failed and he bought all the pieces for $10k....I know he put in a non-stock turbo, because he had to design mounting brackets for it and have them custom made....I also know he is frustrated with it......he's gotten it all together, but currently, if he drives over 40 mph his turbo starts blowing oil all over the street....
does this help answer the question?