1987 Monte Carlo ss high performance 383 stroker

I built the motor is all custom 383 stroker close to 600hp has 700r4 in the trunk that comes with car and new B&M shifter for the 700r4 along with another B&M shifter for th350 or th400 transmission, along with the kits to install either or , interior is 80% front half’s of driver and passenger of floor pan needs be changed ,but I suggest a performance transmission that can handle the engine horsepower and torque, original hood ,original driveshaft also have a few other parts to come with car , motor has over 13,000 alone if need any other pictures or videos of motor running call or text video of engine running is available