Looks like you have a country mile of clearance between the tranny and the driver-side header. Mind posting a pic of the right side? Also, what brand of headers are those?
I had to remove the oil filter, which was a full length PH8A style Napa Gold to get the bellhousing on. I was running the 90 degree filter adapter. The headers are the cheap Summit brand, but they work and fit pretty nice. They do need to be massaged on the driver's side with this 7 quart Milodon oil pan and they are a bear to put in when the engine is in from the top. Passenger side gave no problems and the price is right!
Installing them bolted on to the motor from the bottom it's no problem though. Getting that old oxygen sensor out has proven to be a challenge, so I left it in there until I can get some heat on it and re-tap the hole for the wideband tuning.
This is the best pics I had of the passenger side right now. I can get a better angle later.
