4l60e help
my only issue is on the freeway when i have the car in od when i floor it the car downshifts and acts like it is in netural the trans temp never leaves 160 so i know its not slipping cuz its not building heat, the other weird thing is since the new converter and trans any speed higher than 92mph the spedometer starts to go down like slower until i let off the throttle then comes back up any help will would be greatly appreciated
the mods to the car are lq9 228/230 longtubes, slp catback, dyno tune, 4k converter, 4:10, 100shot


