It will be fine. Run it. If it is so slow it makes you mad at it spray the hell out of it until it blows. Then build the 347 or better stroker motor. Late 302 blocks with roller cams are common so no need to tear this one apart. Run it and have fun. Turbo will always help alot and does not cost much to build up if sourced right. But i dont think it will be needed. Go have fun.
If going for race car or really fast street car it never hurts to have an intermetiate motor. To help get the suspension dailed and running dead straight at the track. Best tp fid out if its going to get wobbly with a 14 second run than a 10 second run. Both can be bad. Lots of good saftey equipment that cost some bucks as well. Roll cage and better rear end gears and wider rear wheels and tires.
Whats the compression ratio?