as far as I know its stock cam and heads. I have only run it on premium but I am sure it would be fine on normal.
this is the exhaust that is on it.
https://www.seductionmotorspor...for-vw-type-1-engine
as far as the trans axle goes I directly copied all the info from Seduction Motorsports when they original sold the car.
https://www.audizine.com/forum...he-550-Spyder-Outlaw
Thanks!