I knew that there was to be some clearancing to do on the driverside center bolt, but i had to remove alot of material. Also there are many hole on the LT1, which ones do i use, and which can i block off? The only one i may have a problem with is the largest hole on the driverside, can someone identify it for me?

Heres a close up

That is where the PCV valve goes on an LT1. If you use a regular PCV system (or breather setup), you can just plug that big hole and use a vacuum nipple off one of the threaded holes, as far as I can tell......

Yeah, John does mention that the older style bolt patterns require some clearancing of the manifold for those center bolts on his site......

Looks good though! Almost ready to rock .

Laterzzzzz,
Matt

Here's pictures of LT1 intake before conversion showing all the hookups.

Great! Now its time to break out the jb weld