At first I was skeptical about gaining 20hp on a ‘73 2-barrel 318 until I remembered that back in 1973 a friend of mine had a ‘73 340 Duster automatic and I had a ‘73 Dodge Sport 318 2-barrel 4 speed. I added dual exhaust to my car and put lighter advance springs in the distributor and it seemed to run pretty good so good in fact that I never lost a race against my buddy’s 340 Duster.
