1985 Chrysler Le Baron timing

I replaced rotor, cap and plug wires car ran nice until timing belt broke.
changed timing belt. car starts right up(nice) runs fine until I try to excelerate. some hesitation is felt as it slowly speeds up. should I advance or retard the timing via disributor minipulation? by the way it is tubrocharged.(nice) covertable. I love this car.

Thank you.