436” is 13:1
355” is 11.6
I shifted the 436” at 7200 rpm, 355” gets shifted at 7300 rpm. I sold the engine and put the car back to street and sold the car.
I had a 3.46” crank with BME aluminum rods with pistons sitting on the shelf so I put them in a 340 block so that’s why I went with smaller cubic inch. It’s what I had at the time