i have an 04 RCSB sierra 2wd 5.3

just installed LPP long tubes and off road Y, with magnaflow catback (all stainless is awesome btw). Plans are cam and stall, with a tune (bluecat if your fimilar with ihim) when funds roll in.

so for a 13.9, how much more would it take?

 

you talking all motor ? with no nitrous or boost ?

 

Tune and converter should easily put you in the 13s. Assuming you can get traction(the hard part).

 

right n/a. i know it can EASILY be done with boost but its my daily driver and dont wanna tear into it that much

 

tune and a stall should do it with what parts you have now

 

Gears and slicks would help. Put a shift kit and servo in while you have the trans out. Then get Black bear or wheatley to tune it. But I'd run it now and see how close.

 

kno a guy with a rcsb 5.3 with manifolds, 3.73s, 3000 stall, cai and an awesome tune running 13.5 or something close to that

 

13.9 will not be enough once you get there believe me...

 

stock 6.0 will get you there