Hi is it just me or is everyone else having the same prob.When using a in cowl bisson muffler I can't get enough tank pressure without plugging up one tube .This would be ok except it cuts the RPM down considerably.I have tried to place the pressure tap in different places without any good results .I even contacted bisson there selfs and DID NOT get a reply . leads me to believe they know they have a problem and either can't or don't want to fix it .
Any comments on this would be welcomed.

Just a note here I know about pumps and regulators ,but why should a man have to spend additional money to get a engine to run that should run with the equipment thats already there .