Should I bore a 74 318 to 340 ci or just go with a 360?

I once took a 318 truck block out to 360 cubes by boring it to 4in bore and using a cut down 360 crank. Basically it was a 360 engine inside a 318 block.

Before you ask why, it was done to fool the registration authorities who would only allow a 318 cuber in the vehicle I was building at the time. As far as they knew it was a 318. :)

But this was done before cheap 4in stroker cranks hit the market. Nowadays i would go for the 390 option if I wanted to use a 318 block.