Throttle body spacers
#1
Throttle body spacers
Someone suggested one of these to me to add power and fuel economy to my EFI 460. Has anyone tried one of these and do they work? Not sure what they are supposed to do and how it is supposed to help, but I have seen them before and someone said it worked on their truck. Also if they work, what kind would you suggest and where can I get them? Thanks for the info.