Nissan P35 from Corally has overall nice downforce but not to much.
If you need more rear bite, use a gurney that is profided at the back of the uncut body.
Peugeot 905HD had a bit more all around.
The Mercedes C11 has a lot of steer but with a gurney at the back is it is a nice body.
The new HMS body has a lot of downforce all round but haven't see it state side.
Regards Roy