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Rule change from 2 barrel to 750 4 barrel, gas. The class is a steel block head 383 max. Am I looking at a run of the mill 4150? Or something more purpose built for dirt?
talk to john at jdr. he can set you up with a nice carb for VERY reasonable. also id look at switching cams. most likely your 2bbl cam will be to small. i built a 406 and it had a 2bbl cam in it but a guy running a mod bought it. it still managed to make 510hp with a 4bbl on alky with the small cam. could have been an easy 50+ more with the right cam.
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