8:1 is too much. You'll rip the tack out of the sail unless it's reinforced.

Replace the single block on the pin at the mast base with a double. Attach a triple to the tack with a long shackle.

From the port wing, the line goes to the cleat on the mast, down to the port sheave in the mast base, up to the port side of the triple, down to the port side of the double, then reverse rotation up to the center of the triple, down to the stbd side of the double, up to stbd side of the triple, down to the stbd sheave in the mast base, then up to the cleat and out to the wing.

You can sort of follow it in the photo (red line).


The halyard exits from under the center sheave in the mast base (it's the thin gray line lying across the tramp in the photo).