help carb id

just found a olds j2 setup carbs look orignal but told they werent here are no 7009094-3 7009094-4 these are front and rear center is 7008597-8 if anyone can help thanks also are their any web sights or books to id rochester carbs 1975 and older thanks hank

 

Give this site a try. Might be on there.:TU:

 

thanks for info but they dont go back far enuff probly 50 or 60s