I am trying to figure out a couple items for my Shelby. I am considering a change from the current tbi and Shelby ecm to efi because I cannot take advantage of the engine mods I have. But if I could find a way to remove the rev limiter on my current setup I will keep it. Any ideas? Is the conveter lockup is controlled by the ecm? If I can get my Shelby ecm modded I have the stock ecm I would consider selling. All help appreciated.