I picked up an 83 regal around june, since then we did some body work, took of the vinal and some other small jobs and primed it.Now im gettin into the go fast mods.Im going to be purchasing a built th-400 to replace the th-350 and then a ford 9" custom built to bolt in....after i get those 2 things in, im gonna swap to a big block from my 327....What will need to be done to the car to get the big block bolted down??