Would like to re build one , will all m74 b and m35 parts interchange with the mr4 a. ? I Want to use it on my 52 fl , I know my pan should have a m74b and i don't expect to gain much from the mr4 but its what i have . It was used on a old Drag knuck years ago its missing idle side needle, it has a bomb sight venturi i also have with out . may have ben modified or used with aviation fuel or what ever race fuel was used back then if that matters . just want to re build it myself and need to know what linkert rebuild kits will interchange, also is there an expert in ca bay area if i may need call thank you. How many mr4 a carbs were made ? Any resources to get info about them?
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