Make your Chevy feel new again with Nova Throttle Body Spacers. Throttle Body Spacers increase the gap between your air intake and engine block. Nova Throttle Body Spacers are available in all styles. Air is added to the combustion cycle more efficiently with Throttle Body Spacers. Complete the restoration with Nova Throttle Body Spacers. Throttle Body Spacers add horsepower. Get the added benefit of better mpg with a Throttle Body Spacer.