360 magnum. 1 piston lower in cylinder??

ham...With this info it sounds like a balanced kit and fresh bores would be the best bet and that will run into some serious coin. Still need cam, intake, etc.
You hit the nail with my intended use. Spirited Back roads driving, some stoplight antics and cruise nights. Would also like to do some distance driving a couple times a year (Skyline drive perhaps).
Current set-up is a 72 Satellite 3600# with LA 360 .030 flat tops, pocket ported and milled smog heads, thin head gaskets, Crane RV cam HV-260-2 I believe. Eddy performer and 600 carb. 904, 2600 stall, 8.25 2.71 ( I know!!). Tires are 26" tall. Car also has ac/ps and 4 wheel disc. I know you didn't ask but also HD springs, 18 inch wheels, .96? front and std rear sway bars, tubular upper and boxed lower CA, frame connectors and full poly bushings. Fun car. No torque.
My plan was shooting for stock bore magnum, EQ, LA front, Crosswinds intake and SG 3.55's. Comp recommend roller XR264 cam with this set-up. I also have a 518 for the near future. Possibly Holley or Fitech when funds become available.