These carbs should work with no problems on your 535. The DM (Dave Moore) powerjets flow ALOT of fuel. I was running them about 1 turn open and still blowing alky out the exhaust. I think moneybags was running them about 1/2 turn open. The only difference between your 535 and my 485 is the stroke. Same bore size. Moneybags was running 300 ft. I used them for sand dragging at pismo, dumont, and Glamis.