I brought them my tri-power carbs for my 1965 GTO and they are the worst. They charged me $900 and I feel like I was screwed. The middle carb float was bad and the never test it so I had fuel pouring out all over. The accelerator pump was missing the small retain spring and it eventually came apart which made the throttle stick wide open and the final issue was the rear carb float stuck in the open position which forced too much fuel into the rear cylinders. Now I have to rebuild a rebuilt motor. Stay as far away as you can.