I can pull out the receipt and give you the part numbers for V pulleys that will get you to 6% over. If you are less than 1:1 now and you can get to 6% over that’s a huge increase.
But, I will say you will have to do some shim work to get the pulled lined up. IIRC I’m using. BBM WP pulley and a small block crank pulley. Or the other way round. But it’s not hard to get them lined up.