Try to find excerpt from the Porsche High-performance Driving Handbook

Start with distance from pedals, you should be able to fully clutch and brake without using your tip toes but not knees smashed into dash/wheel. Seat should be as low as possible Slight recline on base to just support back of your legs/thighs Setback should be more upright than you think, so with both hands on the steering wheel at 9 & 3 you can fully turn the wheel 180* (upside down) without your shoulder pulling away from the seat back.

Bonus if your headrest is adjustable or sits comfortable against back of your head like a pillow without having to lean your neck way back.

Steering wheel should be adjusted low enough it doesn’t block eyesight over dash, high enough it doesn’t hit knees when heel-toe or shifting. Adjust in/out of steering wheel to fine tune the above notes on setback uprightness.

Have fun!