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I have seen a lot of miata's with rotary carb's/itb's. Anyone ever see a 13b carb'd? Or what motor do they usally put in these things? (such as this pic)
I have a 2nd gen E Production (SCCA) race car and run the 48 IDA Weber similar to your picture. When I bought the car it had the 48 DCOE Weber side draft set up. Either works fine and are common on race cars.