I have a later type 276 presently fitted. Without going back outside to have a look I do believe the float has no angle as the intake is straight back like a 1929/30 F. My thoughts were to take photos with measurements and send to Amal just to see if they might have something that would work.
Alan I did have a look at that Flame Trap but I cannot fit due to the tight space unless I move the carb forward but then the float bowl hits the Generator body .
Dave That should have read 626 yes it will fit but again the pancake filter will not.
As Fall winds down I will have all winter to sort this issue out and hopefully by spring have a solution or not