The 75 12v71 Peterbilt drag racing! Very Loud! Very Cool!

Here is the 75 Peterbilt 359 that has the 12v71N and straight pipes. It was recently replaced with N90 injectors and it now turns about 2600 rpms, it probably does around 68 almost to 70 instead of 55 firewalled at 2100. 5:29 rear ends with a RTO-12513 single overdrive 13 speed transmission. Dual 6“ straight stacks, and very loud but good sounding!