ORIGINAL: soarrich
It will be interesting if he reports back what he finds. 3 against 1 on this. I usually go with what Pe says, he's one of the three best on the forum, but I had exactly this problem on a Hurricane, the static tube won't hurt, but it's not the cure for the problem, stopping the slipstream blowing the fuel charge away from the front of the carb is. I always use a velocity stack on piston port engines then tie airfilter foam around that. What he really needs is a Tony Clark 90° elbow #6587 for the carb to keep it inside the cowl.
Soarrich, make it 3 against 2 now. While I agree with the need to make sure that cowl pressure isn't causing problems for the metering system and that should be ruled out as a cause and resolved if necessary. On the other hand I have seen examples where the only fix for a side intake engine was some kind or air dam. The problem is when an air intake is near a cowl, sticks through a cowl or requires an air inlet cheater hole in the cowl, you just never know quite how the carb will react.
Examples of cures I have seen when all the common cures on the metering side of the carb failed to solve the problem..... and this includes baffling, etc. The first included installing (or in a couple of cases removing) a velocity stack. The second was turning the carb 180 degrees on its mount. The third was a very small air dam in front of car air inlet on the outside of the cowl .... this was less than 1/4" high and completely solved the problem. In another case, a small air dam was installed in front of the air inlet on the inside of the cowl.
The point here is that airflow around the carb inlet can do very tricky things on these side intake engines. You just have to be willing to experiment, using all the standard fixes until you find the one or the combination that resolves the problem.
Unlike some people on here, I'm not quite so quick to condemn the suggestions of others.