Just rolled my 68 California Special out of a 20 year nap in the garage............the stock 289 smoked and was down a hole or two when parked. Would like to install a complete rebuilt 302.....roller 5.0 L would work also. I will add the OEM PS, A/C and alternator. Who should I purchase the 302 from? Blueprint Engines? ATK? ......Thanks in advance !!