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I had my injectors, pumps, and transfer pump rebuilt by Albert at Renaissance Tractor. He did a great job. He helpd me a great deal during my 70D project, and when it came time to have the pumps rebuilt, I chose Renaissance. Everything was fixed quick, packaged right, and went back together fine. With just a bleeding it was off and running, and has been for several years now. I do have a dyno, and it is spot on stock output, no smoke. Having the pumps rebuilt to stock should give you a stock tractor, nothing more. You don't need a rebuild to turn up the fuel, as you can do a that anytime you want. I can turn it up and waste fuel, but I prefer to keep it as efficient as I can, as it has more power than I need for my chores. On going to 13mm pumps and injectors, that will give you more power, but I think most places recommend that you also install the newer style 730 pistons (those are all you can get these dys) which will have a different cup in the piston to maximize the swirl pattern of the nozzles. I'm not sure that only 13 mm pumps and injectors give you as much effect as you would think if their nozzles are not fitted to the piston swirl. Send your pumps out bolted to the pump bracket so that whoever works them over synchronizes them correctly. Frank
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