Troubleshooting Frosty T burner

[LilBajan]

I'm really not sure if this is the correct section to ask questions but I will give it a shot. 

My burner is pulsing. I have tried 8"-2" shafts to get the flame to torch, also with different size mig tips (.45-0.030) and I have got the most success with the 6" shaft and the .030 mig tip cut back about half way. My issue is that as soon as I introduce more fuel to the flame it blows out and the flame jumps to the top and burns there. I have tried playing with the air intake by capping off the ends and sliding the open/closed and this does not work either. I am very new to forging as this is the first gas forge. Any help would be greatly appreciated. Also I just joined this group so please send my in the right direction if I'm not posting correctly.

[Latticino]

Hard to tell from the blurry, dark video, but I think I can see the following:

1. You aren't getting enough air induction at any pressure for an even adequate flame.  Most likely you have too large a MIG tip (or possibly obstructed one).  After you cut it down, did you clean the orifice?
2. Orifice tip location is very critical for tuning these burners.  It needs to be centered in the mixing tube opening and any adjustments for lateral position need to be made very gradually and tested each time at different pressures.
3. Did you follow the directions for making a Frosty Tee burner exactly?  What size are your fittings?
4. How large is your forge interior (is there enough space for proper combustion)?  How far in is your burner tip (is there enough length to the opposite wall for the flame to fully develop)?
5. What kind of variable pressure regulator are you using?

[swedefiddle]

Good Morning,

Wave a hair dryer close to the air inlets to see if that works. You can play with how much air.

Neil