[s5uewf]

Folks, I have a 1988 3.2 targa. GT Racing Carrerra tail and RUF
replica front dam. New rear bushings and elephant bushings
up front. All new Bilstein's all around. Tie rods and ball joints
are good. New Toyo RA-1's. It has been slightly lowered,
corner balanced, and aligned. I'm not concerned it is a
worn component so much - more thinking this is time
for tuning advice from you experts.

Here's the alignment spec's:

Front caster L= 5.1; R= 4.5
Front camber L= -0.7; R= -0.5
Front toe L= 0.15; R= 0.15
Rear camber L= -1.2; R= -1.1
Rear toe L= 0.1; R= 0.1
Thrust angle = 0.0

There is a rake of 10 degrees front to rear (rear 10 degrees higher)

Here is my problem: about 95 or higher, the car starts to feel
lighter - kind of 'floaty'. It isn't wandering or anything, but the
steering feels light and I do not the feeling through the
wheel that the car is as connected to the road.

I notice if I fill the tank to the top, then the car handles fine
at these same speeds. However, as soon as I get near half
tank or less, the light feeling comes back.

Question: what do you think might address this, or is this normal?
I am wondering if I should lower the front some more to
induce more rake (and more downforce), or is there some
suspension setting I could adjust (caster)?

Or would adding a chin spoiler under my current RUF type spoiler
solve this (or a splitter)?

I notice this at HPDC and on the highway. I would like
to address it before I get into DE's.

Thanks.
Spike