rate this stuff for add some horses on a 318

you need to get a good valve job to complement a bigger carb. I have a holly 600 on my 65 cuda with 318. I had a 66 wich I raced with same combo but bigger 8 3/4 rear and 3.55 gears. That car ran low 14's and very consistent. My 65 only runs high 15's and 16.0 but has 7 1/4 rear and milder 318. You can make the 318 go nice in that car with good combo and engine build. I also had my heads pocket ported for more Hp. As the guys say it was a 2bbl motor and you want to make it 4bbl w/ some umph! Look at Mopar Muscle I am sure there are some good 318 builds there to use as a guide.

Keep the Mopar fever alive in Europe, way to go!