I just wanted to thank all of you guys on here that have posted ANY good information. I have been reading on this site for months and months, researching and doing my homework. I did get in a panic a few times in the last stretch of this build (the tuning phase). But now I have a fully tuned 383 tbi vortec. I started this build with a bare block and lots of carefully researched parts to fit my desires. My engine will probably never see a dyno, but I can tell a HUGE improvement on power over the stock 350. Unfortunately my transmission can feel it too and that will be addressed next. I know this isn't in a 3rd gen, but I hope that I can carry on this site with the knowledge I had, have gained, and continue to gain. Thanks again to all of you, especially Fast, BMmonte, and several others. BM's post about the "FREE TUNE" is an excellent read and should be read before you can sign up. lol