[QUOTE=adamraaron]Hey guys. I asked a question about the 390 in some other thread and they yelled at me and redirected me here.

Anyway, I have a 1973 Ford f-350 super camper special that I was interested in gaining a little more hp/tq. I have so far ordered a holley 600cfm carb and a new edelbrock dual plane manifold. I bought this truck from my dad which he semi restored and the truck is in nice condition. Can anyone tell me the Cam profile type of these truck engines? Am I right to assume they probably somewhat follow the cam specs of a rv cam since they are made for pulling?
And mainly, I want to get "better heads" what would you experts recommend for this pretty much 'stock' motor?

And since i am not that mechanically inclined (yet/learning) can someone clearly explain the MSD ignitions role, and how it helps with power?

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