Roadrunner or Not
What is the first five characters of the VIN on the title? The second will tell you what trim level it should be, the fifth will tell you what motor the titled car should have! Also, if it is a roadrunner, how do you know that the motor is in fact not original to the car, and the title is from a different car! More research on the motor may lead to clues to the cars origin! What is the casting date? What is the displacement cast into the block? Are there any stampings on the pad beneath the distributor? Is there a partial VIN stamped on the rear of the block on the passenger side, around the top where the bell housing would bolt to? Only a 68 motor would have anything stamped there at all!!
None of this will tie the car to the title, but may shed some light on the origin of the car! You can also check the stampings on the trans to find the year of manufacture and whether it belongs to that car or not! Incorrect year there would tell me that the trans is not original, and that it may not be a big block car at all!
Just trying to help shed some light on this predicament, maybe it will clear itself up with a little research!! Geof