In 734, Zhang proposed that private citizens be allowed to mint money. Pei opposed, pointing out that the quality of the coins would be greatly reduced. Emperor Xuanzong, with opposition also from Liu Zhi, decided not to allow private minting. Later that year, Pei was made "Shizhong" (), the head of the examination bureau and a post considered one for a chancellor. Pursuant to Pei's proposal, a shipping station was built at the point where the Yellow River and the Bian River joined, with two large food storages—Heyin Storage () to the east and Boyai Storage () to the west. At Sanmenxia, Jijin Storage () was built to the east, and Yan Storage () was built to the west. A road 18 "li" long (roughly nine kilometers) was built from Sanmenxia to the Wei River. With Pei's plan implemented, the government received considerably savings during the next three years, and Pei's subordinates suggested that he submitted the surpluses to the emperor as a tribute. Pei stated, "This is money saved for the government. How can I use it to ingratiate the emperor?" Instead, he saved the money for future transportation improvements.