Thank you Chuck for this info. I installed a zeel with power valve last year. It transformed my bike in my opinion. '84 RZ Spec II old pipes and Spec II 30 mm carbs. I am currently using ign. curve #2 and pv map #4. If you want to divulge any of your maps and curves that would be great ! Thank you for freely giving your expertise and experience ,you are a blessing, stay safe.

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