Best way to spend $500

FWIW, for $100 more, ZTherapy carbs are the be-all and end-all. It was one of the best things I did to the car. $600 is a lot of dough, BUT my car was transformed! No stumbles, no hesitation just revs right up to 6500 and I live at 5,000 ft. Steve even changed the jets and needles for my altitude at no extra charge. And they just bolt right up so you can do it yourself. As you can tell, I am a very satisfied customer. Also on a spirited drive last week in the mountains I got 24 mpg, too. You can't go wrong with ZTherapy. Cheers, Mike