SB engine rebuilding got ya! School is Open!

Some of the most common mistakes are the result of not refering to a book. rocker shafts installed backward, cam plate bolt with a hole drilled through wrong, etc..
Rule #1 read the book.
The faults in aftermarket parts or warnings about wont be found in most books. That's where this thread will help.
How the oil pump driver fits the oil pump can effect the life of the pump.
Never trust a replacement dipstick and/or tube. Pour 5 quarts in and check. Adjust whatever it takes to get accurate reading.
Check flexplate to torque converter bolt length. If the bolts are long enough to dimple the converters shell, the converter can be damaged internally.
Common practice is to run the engine before accesory belts are installed. Advance auto parts for example will sell you a lower radiator hose that is too short. All good initially but. Installing the power steering belt then cuts a hole through that hose.
A new mechanical fuel pump should have a small amount of grease at the actuators pivot pin. I wont depend on the timing chain to throw motor oil at the pump in a timely manner. I pre oil that and the timing chain. There is nothing at the other end of the actuator arm.. A bit of your cam/lifter break in lube there is wise.