302 or 347

[Scrapla]

I'm sorry I didnt mention that, this car is gonna be a daily driver, it will see the highway 5 times a week and mostly be drivin on the street. My mechanic mentioned a 347 cause he already had one and the internals, but I'm just looking for a nice motor with decent power that will last me +100k miles without to much maintence, something durable for a daily so now the question is 331 or 347? And the biggest power adder is gonna be a dry shot of nos 100hp and thats gonna be very rarley at the track if I even choose to install the system, other then that its just gonna be your basic bolt ons, maybe a year or two down the line a small super charger like 5psi