Greetings and a few questions from Switzerland.

for a daily driver i would cut and port the heads 20 th add a 4 bbl intake get a decent cam and carb , thermoquads work really well if you can find one . that or a holley 670 street avenger and headers and you will have a decent daily driver that will be fun to drive and get decent gas mileage . i did the above on a 72 318 and it was quick , would smoke the tires easily . and did not cost an arm or a leg , did most of the work myself . Good luck