engine isn't original to yr of truck. but the one thats rusted out has some angle to how it sits in casting. also it is NOT rounded, like extra one i had, or the replacement part super choke #1234.. rod length is 5.5 inches on one i need. bolt/tab spacing is about 3'' to outside of holes. has carter 2bbl. ..not sure if there's a replacement that'll fit in existing cast, or what my options are. but know i need one.. any help/suggestions appreciated.