LS engine swap info

[Scotts Elle]

There are a few links that have since expired or are dead at the beginning of this thread. Also, many pictures are linked to "free" hosting accounts that require the hosting person to sign up for third party hosting. Can anyone please provide the vacuum check valve fitting for the brake booster? The fitting I have for the LS motor is larger than the barbed check valve on the existing booster.

Also, does the coil power feed provide 12v while cranking on a stock 67 engine harness? Wiring diagrams are not very clear. I have my LS installed and it cranks but will not fire. I have fuel pressure, VATS was disabled and base tune loaded. Data logging while cranking doesn't show much.