Scoring from the heights but I wanted mine purer
He was making a mountain of money but he stopped selling that cut of cocaine to get his shit purer, which undoubtedly would be more expensive. This also connects with the next line, as both him and Hitler were after their version of the purest.
Bit of drug dealing wordplay as well, he can be as high as the sky and still make a shit ton of money (scoring the heights) but he chose pure money. The heights here also refer to Washington Heights.
To help improve the meaning of these lyrics, visit "Hold On" by Pusha T (Ft. Rick Ross) Lyrics and leave a comment on the lyrics box