can i get more advice on fuel pumps and interchagability of same- i have a 54 239 that i need to have a double acting pump for-however,if there is a single acting easy replacement(perhaps that fits later engines,etc.) that will get me going,i'd like to get one of those also!-thanks,pat

Airtex 4070 is just a pump without vacuum attachment. I use it on my motor. The later pumps don't fit the 239.

  Dennis in Lititz PA

thank you!!-pat