440 motorhome engine

I put a 76 440 into a 66 Coronet a few years ago, I guess it was similar to a motor home 440, low compresion and cast crank and all. I topped it with a weiand dual plane intale, 750 holley, and a Comp Extreme 268 cam. Headers and duals through 3.23 gears. It was a blast to drive. Lots of low end, ran on crap gas. Ran 13.50's all day long! I shoulda kept it!