Low Dollar RV 440 into a '79 Dodge Magnum

I had a 37' 1977 Fortravel, Based on a D300, the Mill drove me nuts for a second, as it used peanut plugs.... aka small (5/8") plugs. I imagine them particular heads don't flow that good being an emissions engine from 1977. It moved the motorhome though. Damn thing was actually mint, I wish I had kept it! Have fun the Magnum hard to run pretty good with the bigger block in there. Maybe take the heads off your 383 and slam them on that motor