I looked into the heat only delete plate Offered by gbody parts.com . Seemed to me it was a lot of work to pull out that box , then make modifications for it all to work . So I modified my existing setup . May not be for everyone but it will give me the extra room I need for the 455 .( which by the way I pulled yesterday to address and oil leak but that’s another story)and if I can sort out the wiring I should be able to still use my heater .