How did you remove the plugs? Punch them out?

 

There are a few aftermarket companies that make -AN fitting kits
Or you can source out an OEM 4 port vent system
Last option is to remove the rear plugs and drill them out to except -AN fittings and plumb up a vent kit your self

 

It won’t clear on a TVS without getting creative.

 

I see that. Thank you!

 

I understand hottest. I would think those cylinders would be more rich than the fronts on a N/A application, lean on front inlet nitrous installs, and no different under boost.

 

Im not sure what power my setup is running, however I'm running the front coolant bypass lines only. The rear are capped off with no over heating issues on my daily driven LSX432. I have thought about running all 4 in the future just as a precaution.

 

Its really only an issue with the factory intake... they have a very direct flow path from the TB. Look at the front holes and where the intake runners end in comaprison to the TB. the air needs to make a hard 90 right after the TB to make it to those holes