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I have 1985 f150 4x4 that I am putting a 460 in. This is my mud race truck. The 460 is out of a 1985 f250. Its all stock. Now keep in mind I have been racing with a 300 straight six all stock. So any upgrades is better then with what I got. High horse power is not my concern. I am not looking for huge gains because I want to stay in the stock class to keep it fun and not about money and my budget is small like alot of people.
The truck sits with this already:
1985 F150 4x4 300 I6, Stock Motor, 6' suspension, 3
body lift, traction bars, lincoln lock rearend, 35' BFG mud, Non street legal
My thoughts and plans: 460 build
Stock heads, non ported.
Headers
Recurve Dist. and a duraspark
68-71 Timing chain set
and maybe a 750 Carb
Not looking to get crazy nor do I have the budget for anything else really just what I mentioned above. The engine is sitting a engine stand and want to do this work before I put it in the truck this summer.

I would prefer torque and HP to be more mid range. The engine is used only for mud racing, so Idle is not big deal or fuel mileage. I will be running premium pump gas.
What is the biggest cam without modifying or replacing springs or valves I can use?

Sorry if there is more info needed to know in order to answer my question.
 

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You would probably get more response posting this in the Engine Tech section. This section is more an archive for proven builds, doesn't get much activity in here.

I would suggest calling one of the experts on here and getting a custom grind for your application.

I just had Scotty J (Mad Porter) do a custom grind for me and he really nailed what I wanted. I am certain the others would too. We are fortunate to have a LOT of BBF knowledgeable pros on the forum that will get you a much better cam than off the shelf grinds.
 
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