"Any of you fellows disconnect their TPS sensor? "
Not me but many have. Like when you change out the oem carbs for anything else...

"Did you notice any adverse effects with gas mileage, performance, driveability?"
n/a

"I don't know if the sensor is replaceable??? "
No. It is only available as an oem part WITH a complete set of $1700+ carbs.
Yes. if you buy a used one on fleabay.


Blowing gravel off rural roads