An exception--perhaps the only one in the 435-member US House of Representatives--to congressional pork-chasing is John Boehner. Boehner represents a district contiguous to the one in which I live here in the Cincinnati area.
When he was first elected in 1990, Boehner said that he would not seek pork barrel spending for his Eighth Congressional District. He said he felt that such spending was irresponsible budget-busting.
Boehner has been true to his word and the consequence, as you can see here is that some locals, including office-holders from his own party, criticize him.
Whatever your feeling about his politics, you have to hand it to Boehner for consistently adhering to his principles.