[1795]

Bill,

How long ago did you purchase the carbs and from what source directly? I tried to go to their website online to see if I could find some information for you with no luck. If you do not have any information from them, you can remove the main jets and idle jets and their holders by unscrewing the screen on the top of one carb and then using a screw driver to remove them. The jets and holders should have numbers on them, telling you what size they are. You can measure the choke tube inside the carb and that number should be in mm. 48 IDA's are the base size and would be fine on a 427 race engine, but are way too big for a 289/302. While my 289 race engine has 48 IDA's on it, the chokes are actually 42 mm. Some street setups may use 38 mm, 40 mm or 42 mm chokes.

Jim