Greetings,

I am building up a mild 5.2L Magnum for my '73 Duster (hotter cam, roller rockers, etc.)

I plan on running a 600-670cfm 4-bbl (probably Holley) either electric or manual choke and an appropriate intake manifold.

My question is this - I have heard that carbureted Magnum engines have poor cold weather characteristics due to their lack of a heat crossover, and as I live in the Pacific Northwest this could be an issue.

Any thoughts?