Yea dude, Gear bangers advise is spot on, he's a wrench turner though and seems to enjoy the labor though. Unless you like screwing w/the timing cover and or any thing having to do with timing chain; tuners is advised, computers are the bomb. Save up for a tune.
You will hav'ta buy a new timing chain gasket , the timing chain adapter and maybe some oil. Plus risk injury to your crankshaft. Get a handheld. Less to worry about, other then the tuner.