My Father in Law has a 1050 carb that he needs jets for. He has 106, 108, 110, 112, 114, but needs 116 or maybe bigger. The jets he has look to be like BLP special jets. The rear has the extended piece on the jet itself acting like a jet extension. I looked on BLP site and am a little confused as to what size to order. He needs 116 and according to their conversion chart a holley 96 would be the same as a BLP 116? Is BLP the only place the sells their own jets and are they the only ones that have the rear jet with the extension on the jet itself?