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Agreed, the 440 source style kit was my second option. But I'm staying with the 220 journal and .990pin chevy set-up. I just want to stay with a light weight piston so it will rev fast. Oh the Cam will be a solid flat tappet.
If your buying new heads buy the the Max Wedge intake ports EZ, sell the M1 intake and buy a used Indy single four intake, 4150 or 4500 flange with the max wedge intake ports, both work well with adapters or spacers with the Quik Fuel or Holley 950 H carbs, the Quick Fuel is bigger CFM than the Holley is    and shoot for close to 255 to 265 duration at .050 with as much lift as you can get on the cam and have it ground on 108 lobe centers, install it 3 to 6 degrees advanced on the intake lobes  I've built and help build several 3.91 stroke motors, both high deck and low decks, they will run  
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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