Cubenstein, my daughters 69 Cub, is in serious need of a rebuild. Compression is even but low. Blowby is consistent and strong. I can buy A&I kits from my workplace. Will they work ok, or do I need to look at a different rebuild option? (While I'd love for her to win the Tug, this Cub gets used more than any other tractor on the farm. Wood splitter, trailer, and mid mount snow blade in the winter, sickle bar mower for road ditches and a 9 year old's ride in the summer this year.