Oil pressure gauge 1987 T Limited

[TIMINATOR]

What sender operates the factory oil pressure gauge in the insturment cluster? The one wire sender, or the 3 wire fuel pump cutoff safety sender?
I'm working thru wiring issues before I start it. Getting closer! Thanks!
TIMINATOR

 

[John Larkin]

As I recall it is the 3 wire on the safety switch.

 

[TIMINATOR]

How about the boost solenoid?
Operating parameters?
Does anybody still run it with a modified engine? Why? Why not?
TIMINATOR