Both engines are similar in hp/tq, this is going in my 58 Chevy Pickup, this will be hot cruiser with a 350 trans and a 2400 stall converter.
It currently has a 77 Camaro front clip with the donor 350. I think it was a whopping 195hp engine when it started out, but no so much today. The rear gear is a 3:08.
Keep in mind with a 3.08, it may still feel a little doggy... I know a th350 will be a high winder, but may consider a gear change if this is just a street bruiser.