What camshaft spec for 425 hp

PG Duster said
Thank you for that info. I had books like those in the 80’s when I had my 71 340 Duster bracket, and my C/stock Road Runner That I used to use religiously. Is there any way to get those now?

The books are still available with the exception *I Think* of the MP books, BUT! You should be able to find them used. Find the small block engines book for it contains the “Speed Tips.”

And now I’m a bit motivated to take a helpful picture or two for you…. Enjoy… some parts will have to be substituted due to MP discontinuing parts.