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[QUOTE=orygunf150;3698] running in level 3 I adjusted the shift firmness to 5 and noticed it shifted a little better. Lookes like it goes to 25, is there an issue with this? Has anyone here tried it? I have a 67 Mustang with a c4 and trans go shift kit, it will bark the tires in second gear no problem. I'm sure the f150 wont do that but I'm wondering what it shifts like at 25 and if it's advisable. [QUOTE]
I have my WOT shift firmness set at +12 for the 1-2 and the 2-3 shifts. The 3-4 shift is +6. The only issue I have had so far with this is belt slippage shifting at 5200 rpm. I put a Gatorback serpentine belt on and this has alleviated the problem. I would listen to Jack's sage advice and only go up in small increments to find something that works best for you. I like the way it shifts at +12 so never bothered going any higher. It's firm but doesn't sound/feel like any damage is being done.
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