The 340 is the biggest POS V8 Chrysler ever made.

Current hp factor for a stock 340 is 310 hp . That is 71 340. with TQ....314 hp with replacement heads that are legal..68-70 AVS are less HP...nhra has about 5 different hp factors....GT class...replacement head....manual/auto trans...dam...then there is the politics of engine factoring.

Those engines are junk anyway