Did you take a compression test? Did it indicate low compression? if the engine truly has a hundred sixty thou miles it is very unlikely to be a problem in the bottom end....the top end either for that matter. have you checked the vacuum pump?

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.