Thanks to you guys and Steeveedee specifically I found that the intake/exhaust gasket was broken for the runner feeding cylinder 5 & 6 causing a massive vacuum leak. After replacing the gasket including remaining the connecting surfaces were back up and running on all cylinders!
Here is how its running now:
https://youtu.be/Pocn6DxMCxk
Now time to get it out on the road as my daily to work out the other kinks. OH and I also entered in my first car show Peggy Sues Cruise in Santa Rosa!
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- 1972 K20 Longhorn, 4wd conversion. "TAWNKAA" Project. 292ci Inline 6 / '93 NV4500 / 32 spline 205 TC / Dana 60s front & back / rear Detroit Locker / 4.10 Gears / 35" BFG MT KM2 / 4" Tuff Country lift.

"TAWNKAA"Build Thread
http://67-72chevytrucks.com/vboard/s....php?p=6823933
- 1970 C10 Lonbed, 292ci Inline 6, 3 on the tree, stock.