I’m currently working on what will pretty much be a clone of the gm ht 383, 64cc vortec heads, same cam as the ht383 and ramjet 350, should be below 9.3:1 compression with the pistons I will be using. This will be going in a 93 Yukon 4wd with 3.42 gears and a 4l60e transmission. The current pcm has the bdjy bin as the stock bin. I will be using a dual plane intake with a tbi adapter plate. I have a tbi that has been bored out to 46mm that I will be using on it. I haven’t gotten the injectors for it yet though. This will be my first time messing with any ego systems. How difficult will it be to get an engine running decently? I figured I would check to see if anybody has any pointers to get me headed in the right direction or any bins that may be close to what I need.