I have a 800 that has been on the farm since I was a kid. The problem is it is getting very tired. It is now time for an overhaul and some other needed repairs. It does not get used nearly as much as it used to but it was the first tractor I drove so it holds a speacial place in my heart. I would like to use it for a few plow days and maybe the occasional antique tractor pull. I'm planing on installing a new set of 4 1/4" sleeves and piston and then doing a little pump work. I was wondering if anyone had any other suggestions for adding a little power. I want to keep it reliable and I do not want to install a turbo. Any help would be great. I'm sure there are a few old tricks floating around out there. Thank You.