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[Scalyback]

[center]
It called Engine RPM and I have it on my iphone. Only app I paid for and it's not cheap, but works surprisingly well, even inside what seems like a very quiet car. Click link below to go see, works well with both my iron and EFI bullets!




Engine RPM app

[Scalyback]

Thanks Paul, Had forgotten the technical notes. Will remember to look there next time I need advice!