Ok with the LT1 intake mine doesnt seem to have a lot of room in the back of the intake, and mine is the style that has the sender and the switch both back by the distributor.

I have the sender in, is the pressure switch necessary. I mean I know it would be nice to kill the engine if I loose pressure, but if I cant get it in there, will the car run, will it throw a code, blah blah blah

 

How about relocating one to the port down by the oil filter?

 

or the 1/8 npt plug above and little left of the timing cover

 

I never thought of that one ede.....I was thinking the low one though to minimize the wiring length if it was to be rewired. I'll have to keep that front oil plug in mind though in the future!