Preferred Engine Oil for your 72 340 Mopar

this
[ame="http://www.amazon.com/Valvoline-VV851-Racing-STREET-Bottles/dp/B000GAP42I/ref=sr_1_1?ie=UTF8&qid=1327897094&sr=8-1"]Amazon.com: Valvoline VV851 Racing 20W50 NOT STREET LEGAL Motor Oil, Pack of Six 1 Quart Bottles: Automotive[/ame]

hmm it went up $7 from just 2 weeks ago, i know cause I got a case for spring