Looking at the same mods for my 97 K2500 L29, depending on the cost.
@L29Sub, same questions as Dinkster on the FI and also black box upgrades needed (BlackBear?) Did you have to clearance the block for the new crank/rods? If so, how much extra work was that? What did the crank kit cost? The cam LSA is 113, do you have an auto trans and need the vacuum, any thought of a 109 or 110 LSA, did Comp Cams spec the cam for you?
@Dinkster, please share your crank kit order details and cam you're going to run.
Has anyone done basic port cleanup/polishing on those vortec heads and see any gains from that? not looking to custom flow the heads, just smooth the rough edges out while they are getting worked on.
Planning on shorty headers. Has anyone closed off the ERG, deleted the cats and seen any problems or benefits? The tune mods can delete both of the erg and behind the cat sensors, so can save a little bit of time/cost with the new exhaust setup.