Frustration .. noises and squeaks

[mptech]

Did you buy or build your roadster? What make is it / how old is it?

Are they squeaks like control arms / joints? or squeaks like panels rubbing?

If they are joints / bearings, check that they are sufficiently greased (if the car is older, maybe it needs to be serviced) or replace any worn items (ball joints).
If they are panels rubbing, look for shiny spots and apply some silicone or possibly replace a loose rivet.

Can you replicate any of the noises as it is sitting still and chase them down?

More detail, would help. Good luck

[RICK LAKE]

As others have said, all mounting points going to the frame need to be greased. Pull apart 1 mount at a time to no effect alignment of front or rearend. Grease bushings and bolts and both surfaces and reassembly. Do this to each mount. put car back on ground and tighten bolt and nut to spec. This will stop binding of joint. Start in front end and work your way around the car, 1 corner at a time. Shock mounts too. Don't over tighten nuts either. This will causing binding too. The noise is suspension if going over bumps. Rattles will be body noises or exhaust. Chassic ears will help track down location. Last side note, you brought a cobra, It's loud, noisy, clunky, nasty, and abusive. You could spend the next year removing noises the car makes with foam, insolator backing material, and other noise reducer tricks.
My other thought is the suspension springs are to high for what you where looking for. Maybe drop the spring rate 100 pounds and roadtest the car. If the shocks are adjustable on compression lower the setting. You will lose car handling and may help for a softer ride. Rick L.