Product Description Coil is for carb Twin Cam For optimal performance use 381-656 or 381-703 plug-in ignition modules or stock Twin Cam ignitions Replaces OEM 31655-99 (will not fit in place of OEM 31639-99) Daytona Twin Tec High Output Coil for Twin Cam at RevZilla Browse all RevZilla deals $100.99 In Stock at RevZilla Price checked 10 days ago Buy Now at RevZilla Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Daytona Twin Tec Size OS Condition New MPN 2008 Daytona Twin Tec