Hey guys i am new to the forms and Mopars but not to the world of muscle cars. I have a 71 duster, and want to drop a big block in it. Nothing crazy, just a mild 425-450 hp wedge. The plan is to take a 383 block and drop in a 440 crank, making a 426. i am looking at a pump gas combo that will run to 6500 on 92 octane. This is going to be a budget build, with a rpm perforer dual plane, 750 dbl pumper . Not sure if i need to spend the money on Eddy aluminum heads to achieve this or can i do this with warmed over cast heads? I am going to run a solid flat tappet cam, and need to know how much compression can i run with the cast head and Duration at .050 needed to keep it from detonating? Any advice would be great.
Thanks In advance. Sheldon
