high impact colors with small engines

There were 10 high impact colors between 69-73. FC7-plum crazy/in violet EF6-bright green/rallye green FJ5-sublime/lime light FJ6-green go/sassy grass EK2-go mango/vitamin c FL5-butterscotch/bahama yellow FM3-panther pink/moulin rouge EV2-hemi orange/tor red FY1-top banana/lemon twist GY3-citron yellow/curious yellow. High impact colors were about a $15 option. 4 were introduced in 69, and ended in 73 with FY1.