i bought some evinrude parts off ebay and inc. were two carbs for 55 hp 2 cyl rude. they look exactly like carbs on my 77 55. however they dont have choke butterflies nor are there any holes for butterflies.numbers on them are c1329627. itloks like they never made it too choke drilling table during assembly. the throttle arms appear to be cast from stainless and seem much sturdier than others ive ever seen. anyone know what the heck i have here? i cleaned them and gonna see how the run, ive got nothing but time so here i go. i hope they start w/o a choke.