hi vanagonites

when I drive my 87 gl around if I turn to the right or go downhill my gas
gauge goes higher and when I make a left turn or go uphill my gauge goes
lower.. are these fluctuations normal?? the total fluctuation is about a 1/4
to 1/3 on the gauge.  my temp guage seems more stable btw. any thing I
should do about this??

ed