Still searching for their first win of the year, the Dolphins went home for a Week 4 duel with the Oakland Raiders, featuring former teammate Daunte Culpepper.  The game was delayed for 30 minutes due to thunderstorms in the area. In the first quarter, Miami trailed early as Culpepper completed a 7-yard TD pass to WR Jerry Porter.  He even got a 2-yard TD run.  In the second quarter, the Dolphins managed to get on the board with RB Ronnie Brown getting a 9-yard TD run for the only score of the period.  In the third quarter, the 'Fins managed to get closer with kicker Jay Feely getting a 29-yard field goal, yet Oakland answered with Culpepper getting a 5-yard TD run.  Miami ended the period with QB Trent Green completing a 3-yard TD pass to TE Justin Peelle.  In the fourth quarter however, Culpepper delivered the final blows by hooking up with Porter again on a 27-yard TD pass and getting a 3-yard TD run.
Question: How many yards longer was Jerry Porter's second touchdown catch compared to his first?
Answer: 20