Ok, So i have a 1991 K5 with the 350, the fuel guage does not work (always empty) is it the sender? My 98 k2500 (454 vortec) did the same thing and it needed a new sender/pump ($$$) so if this is a common problem, i guess it is the ol JC whitney special (universal sender/guage)! Just thought i would seek out some info on what you all have seen!