I will be upgrading to EFI live in the near furture but want to make some upgrades to the trans first. I have read about the transgo kits but is there anything else I can do beside this kit? I am not looking to have to pull out the trans. to change the converter or rebuild. All mods will have to be with it in the truck. Also does the transgo kit make it shift much harder? It already shifts pretty hard under hard acceleration. Also what would be the HP limit with tunning with these mods? Thanks in advance.