Hey,I havea 1997 GMC half ton with a 305. I have recently purchaced a nw holiday trailer, and it seems to overwork my truck while hauling it. Anyone have any easy tricks to squeezea bit of pulling power out of it? I'd rather put a little money into my truck, rather that buying a new one. does performace exhaust help this problem at all? I've kinda wantedto doitfor a while and this would be a great excuse for it! Thanks for your help!