383 sits crooked in engine bay

Soooo, just a thought. Weld up all the holes and then re drill up 1/2” or what the difference is. A lot of these conversions are done in a private persons garage using what ever parts and knowledge they had at that time. What worked for one person may not be to the standards of the next. That is “hot Rodding” taking a car and making it faster how you want. Now you bought the car like that. Don’t expect it to be perfect to your likes. The car is 40+ years old and who knows how many people have touched it.