85 GT 460
I have a 1985 GT with a 460, it isn’t like anything any of you have been talking about, mine started off with a 302 and a changed to a C4 trans and a 430 gear. was a fun car to drive. Then came the big block, mine is a 429 super cobra jet, bored .030 over and a 460 crank, it is a 11.8 to one compression with a C-6 trans. I played with gears even left the 430 in it after it was done just to screw around, it was like a top fuel going through the water to preheat the tires, right now I am happy with the 3.27 gear is a nice gear, and as far as torque compared to a 302 LOL the 460 motor has TWICE the torque as the small block. And mine spines 7000 rpm on a solid lifter cam and roller rockers.
The huge problem you are going to have with this car isn’t the gas mileage. (mine gets around 12 city) the problem you are going to have is traction, it sucks, I still race the pedal off the line I push it until I feel the secondary start to open, then when it starts to hook it is all the way to the floor, by then you are pushing 65-70 mph in a flash, so be careful on the street this thing goes fast quick. I have been searching the forums looking for some ideas on the wheel tub and the fuel cell in a hatch back. I use to have tunnel ram on it and sold it to a guy on eBay, complete. now it is a single 4 barrel on a single plane manifold that matches my cam rpm perfect, all under a stock hood scoop, yes took some doing and there is a hole in the hood but the scoop is factory and is just clearing the top of the air cleaner and it is a true sleeper, I will post a picture or two of it if I can figure out the soft wear, but I don’t have any of the car with out the tunnel ram yet but I am working on it.