Yes they are pretty easy to install & generally come with good instructions. You will have to jugle vacuum lines & fuel lines. The throttle linkage will have to be modified. If you want my opinion I would get the Edelbrock performer. The hollet & demon are o.k. if you are going raceing. The performer works good right out of the box but you can tweek it a little with a jet kit. If you have an old manifold like came on the 66 you may have to modify it or get an adapter. I like the aluminum manifolds. You can get a performance manifold or an aluminum one from a early 80,s G.M. car.
