ok, so i built a nice 383 for my 95 c1500 xcab 2wd and yes im keeping it TBI. so now 0n to the tuning part $OD Mask is set to AA so i assume checksum is good? on the hunt for a 2" TB now but im stuck with a worked(shade tree lol) TB, so at one point i found some 383 bins on here somewhere with epa deletes but with the build the egr is gone but not forgotten by the ecm.IM RUNNING MOATES Autoprm and tunerpro rt if some one could help with directions on a good starting point on a 383 bin file or point me to a good file i would be thankful.