10 sec. 318?
It's a matter of his budget. Building a 318 that runs 10 is simply not practical for $6000.
Even if he got there the engine would be so stressed that the life span would be short with street use and the money to keep it running would be gone.
10 second cars are cool but there is something to be said for the 13 second car that can be enjoyed for 10k miles a year.