OK, but it's not "factory", and isn't it twice as much as would ever be needed?That is a fixed "adjustment" for the Tack.
There's no reason to use pulleys (blocks) to multiply force when raising the sail. I'm not all that strong (right hand at appx 30% usable, one leg, bad back...) and can haul a Sunfish sail right up from the cockpit running the halyard down through the line guide and straight back. Get the sail stretched out most of the way, then use one hand on the halyard and the other to push up the lower boom, shaking the boom a bit so the gooseneck rises on the mast. Tie off the halyard. Then tie the paracord on the gooseneck to the deck cleat, snug so the wind can't pull the boom up but don't haul it down hard and its fine. From there you can leave the gooseneck paracord alone and raise/lower the sail at will with the halyard.
You might consider a cleat on the mast for the halyard. I found that it enabled me to raise and cleat the sail quickly and easily. Then run it through the existing deck block to the deck cleat so you don't loose the rig if you flip.
The cleat is called the "Gripper", is manufactured by Stearns (among others), and is available in metal or plastic. As an "aside" for bigger boaters, after just four minutes, you stop the video, because you have gotten all details on proper cleat tying from this 10-minute video:I stuck a "serpentine cleat" (probably some other name for it) in the cockpit of my Minifish for the purpose.
One of the Sunfish knock-offs—is it the Phantom?—comes that way from the factory. I've modified my combing/splash rail , and added a cam cleat to do the same thing. Getting the hole through the right place is difficult.I've seen folks run the halyard back to the cockpit, drilling a hole in the coaming for it to pass through and then add some type of cleat just forward of the cockpit, maybe a cam cleat so you can pull the halyard a bit, let it loose to rest and position the spars, then pull again.
My Porpoise II knock-off had a block at the top of the mast for the halyard. It pulled out miles from home, and dropped the entire rig. The manufacturer: Wilcox-Crittenden! Fortunately, I'm never far from a small collection of cable ties (including stainless steel cable ties). One plastic cable tie got me home.The early Sunfish mast had a block at the top for the halyard to run through on a through bolt, but those came loose and pulled out a lot. Then there was the switch to the plastic cap.