Good to hear we're pushing them. My plan is to push my 4.4 out to 300K. If I can do that without a major powertrain issue I'll be happy. I may change out the valve covers this weekend as well as finally getting to those heater hoses. I've got the SLS light as well but plan on swapping out the air for coilovers on all four corners. I'd rather spend the money on springs than chasing a moving target for 3K+