the 351 has a much stronger block than the 302, more cubes, and is just as cheap to build as a 302. 351>>>>>>>>>>>>>>>>302>*.chevy engine
a 351W stroked to 393 with a decent shot of nitrous would be a nice 450-500hp beast with a boatload of torque.
and what’s wrong with a 351 cleveland? In a light car, a cleveland is a very good choice.