Good day everyone, I have a 1999 chevy suburban LS 5.7 4wd and it has an incredibly rough time starting in the morning no matter if it's warm or cold outside. It'll start but man is rough, but once it's up to operating temp it's fine. I just purchased it a few weeks ago and it's actually the reason why I'm in this forum lol. It has 178k on it and the engine and trans is rebuilt. Not a leak on it except for the 4wd unit. No check engine light either. I also have a 99 tahoe LT that's pretty stout so I been taking parts off that one and putting it on the burban.i replaced the entire air box sensors and all, got a k and n filter on it. The only thing other then replacing fuel pumps and filters is that my battery cable isn't the greatest. It is a little wiggly, but I'm not really thinking about that since my vehicle starts and acts perfectly fine once it's warmed up. Any thoughts? Thank you in advance.