This probably wasn't the best car to make a drag car out of, but since I also have a '66 GTO I've been wanting a car I can build up as a twin & this was it. This car also has an almost mint interior despite how I found her. There was no motor or trans, but I had those gathered up already.
The engine is a .060" over 455 Pontiac (462 cubic inches after boring). It has a 780-cfm Gary Williams carb. The heads are off a '71 Pontiac 400. They've been ported and flowed by Jim Butler Performance. Cam is a solid-lifter Ultradyne with approximately .600" lift. The trans is a Turbo 400 out of a Cadillac, but when I had it rebuilt I installed the short tailshaft. The torque converter is a 3000rpm-stall B&M Holeshot.
Here's a pic from when I first got it running. I don't have her painted yet (this was when I was stripping the old paint), but the color will eventually be Orbit Orange (a GTO color from 1970 that's a bright bright yellow with a slight orange tint, like in this pic).
The pic below is with the Holley Street Dominator (no longer in production)
intake manifold. With this intake & no nitrous she's run a best of
12.77 @ 108mph. I'm currently installing a Holley
Victor intake which along with the engine blueprinting I'm doing should
get me into the low 12s.