[Duffman]

Tons of questions to just guess at what it is.

How do you know he did a "great" job? Did he run it and shift it at his shop for you?

How did it start at that time?

Did you lay the motor down in the truck for the ride home? Debris, dirt, get into the carb from the motor being on its side, etc?

Etc, etc, etc.......call him and ask if anything he saw was outta the ordinary and explain your problem.

"95% of problems occur due to a recent repair"