4.6 2v

I plan on running A/C in my MK4. The engine is a 2001 4.6L 2V out of a Mustang GT. The FFR headers hit the back of the stock A/C compressor. As it bolts directly to the block, I'm not sure of a solution to this problem. Is there another compressor that will bolt into the stock location that is...

are these PI heads, motor is out of a 1996 ford mustang gt, the intake has been updated, just cannot tell which heads it has, i was told it was converted to PI heads just trying to confirm here is also a valve cover pic

Before I install the Oil Pan, looking to see if I need to remove the Rear Main Seal Retainer Plate first, in order to replace Seal. Ford Factory Manual says to use SSTs, which of course I do not have, then this can be done without removing Retainer. 1) Removing the Retainer looks to make this...