kooade,
If that is a new motor to fire, make sure you put in the proper 8-9 qts of oil required at startup!!!! Ford sorta screwed the pooch when they neglected to tell folks about all the nooks and crevices in those DOHC heads to hide oil in!!!! Was just talking about this at my local Mustang shop where I ran my car on the dyno.....subject of oil pan stories came up! Once you change your oil the first time, and put 5qts back in, you're fine, as you will never drain all the old oil out!!!!
If you do not fill things up properly at start up, you will toast your engine.....lifters/rocker followers will rattle...... SOHC motors, no sweat!!!
Do a web search....you'll find the horror stories.....or simply pull your dipstick immediately after you shut down the engine....dipstick will be dry....no oil in pan.
Go figure....
Steve