I have a 4160 600 cfm with vacuum secondaries. the List number is 6919. The primary bowl is a 34R8242AQ, the acclerator pump screws are stripped out. I can't find anyone that sells this Fuel bowl but I see there is a 134-101 that looks the same. Whats the difference between a 34R8242AQ and 134-101? Can I use a 134-101?