Polishing eng covers

getting ready for a build polished engine covers , i used mothers billet polish after wet sanding , I remember the blue tube of flitz , has any one used flitz lately is it still the old formula (blue) and do you think for a final polish it would be better than mothers . Iv used nuvite in the past very expensive but very impressive . Thanks

Your covers look nice. Good job.
Can't help you with info about flitz. I'm way too lazy to polish the way you did. I use a DA sander with 220 grit paper followed by a sisal wheel and black cutting compound.