[marxjunk]

the absolute best penetrating fluid out there is brake fluid..it wicks where nothing else will..but its agressive and hard on shiney stuff like paint and orig finish on aluminum ..

sea foam penetrating spray down the stud over night, its the best stuff on the planet that comes in a can and is not agressive and wont eat, and a little heat, it wont move because the housing is prob glued to the intake..with heat the penetrating oil will wick...it will run in there..

get a HD heat gun and get on the T housing til it burns the paint off,get it too hot to touch, let it sit for 5 minutes, and get under the flange, with a thick flat scraper/putty knife, until you break the gasket seal..youre not going to gain on it...be cautious, and dont go nuts..and the gasket should pop with a bunch of heat..i feel better with a heat gun, but map gas etc works too...

then when the housing is off, mig weld a large/oversized nut to the stud down low, the heat from the weld will help break the stud loose, and not crack the intake..ive done that 100s and 100s of times..its my go to...i get a nut with a hole as big as the stud so it slips over..and weld the stud to the nut in 2 or 3 places..if its delicate, i space the nut up off the intake as not to scratch or gouge it..a washer does the trick..it will back out with an open end wrench...it works

ive done this myself 3 time with chevy alum hipo intakes..if you get too ruff or in a hurry, it gets ugly...but ive done it, and it works well