This is an ultralite fuel pressure gauge. It needs the sender because I lent it to a friend to test his stuff and never got it back. Looking to get $60 shipped. senders can be had for 25-35 bucks. I paid like $30-140 for the gauge new.

best time so far 14.3 @ 101.1mph(no traction)
www.cnnmotorsports.com