IMO - I don't like the smaller journal cast crank 327/302/283's. GM recognized this problem about 67 and made the 327/350 larger.

Years ago I destroked a +.060 350 with a 3.25 stoke forged crank for my street rod and later it ended up in a successful circle track race car.

The reason why a 337 ci is so successful. It was in an restricted carb class. So both a 358 ci and a 337 ci make the same amount of power only the 337 has an additional nearly 500-600 rpm.

Back to your question. I've always tried to run enough cam that I could get away with 10.5 or so compression even with iron heads.

If you have the budget get longer rods like 6.125 - 6.250 Run KB hyper pistons in a sub 7000 rpm motor and Forged flat tops in a motor expecting more rpm or spray.

I've always like Crane cams and their Power Max lineup. I used the PM 272 for years in a 3500 lbs car.

Use good heads with 2.02/1.60 and you need 64 cc to keep the compression up with smaller cubes.

I like the higher rpm rated dual planes for street motors with sub 200 cc intake volumes.