Newbie 318 piston question

Just picked up a 72 Dart, 318. The receipts show it has the KB 399 pistons at .030 OS. Head casting is the 974 (360) head. Machining shows the block was decked to zero deck clearance. Some porting was done, and the motor sounds really healthy. Almost ready to test drive it, after changing the carb, and fixing the NSS along with a bunch of other stuff. Compression test is showing 170 lbs, not bad for 5400 feet. I'll let you all know how it runs, pretty soon.