With all plumbing and wiring the pictures just are not clear enough to see. But in person it should be very easy to see that way
If Bens99gtp is correct and I don't see any reason to doubt it, looks like the intake is a SP1. The following 3 pix - 2 from driver side 1 from pass show a straight line front to back even with the valve cover. Thx for the excellent call. I got a better flexible mirror. Pulled the 1,3,2 &4 plug wires off the plugs. Couldn't see any stamping on the driver side. Was able to see "TA Stage 2" under the 2&4. Couldn't see anything about SE or TE. Next stop dyno and then I can start pulling parts . Thanks to this info I can buy the intake ahead of time Appreciate the help from everyone.
frank, if you look at the picture I posted in post #22, you can see where the heads are marked. It's up behind the exhaust, so not easy to see. https://www.v8buick.com/index.php?attachments/stage2id-jpg.587212/
Thanks Larry. Very pretty much impossible to see anything past 1 & 3 with the headers. Got a decent look with a flexible mirror at 2&4 like I said TA Stage 2. But couldn't see past that. Was impossible to take pictures by myself. But thx as always.