how much do machine shops typically cost?

Do the late 80 and early 90 use the intakes and other accessories from a 74 360 I already have....power steering pump, motor mounts, etc...thanks

Yes, they are still LA block/motor, they just came from the factory with roller cams. I would've gone that route had 1. I known about them when I was looking for a motor and 2. If I didn't pay next to dirt for my 340 I'd have bought a 360 roller block.