I see everyone puts turbo into there 240Z w/ a L28. Why don't people turbo there L24/L26? Its not a big problem because its carborated right?

 

Well part of the reason is because the F54 block which is used in the 280 turbo car has more reinforcements than the other blocks and the if you're going for more hp, why not go with the advantage of bigger displacement to start with?