Mr. Sinister said

The 380 crate motors were a 3
Angle valve job a custom ( made for Chrysler) cam and it was degreed in topped off with a MOPAR M1 intake on a production short block.
There,That is how it’s done.
Nothing to debate here I worked at Arrow and built some of them.

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Dartswinger70 said

I miss those MP crate engines I thought they'd be around forever They had a 300 horse and a 380 horse offering if I remember correctly.

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