Originally Posted by sbc307
this is starting to make sense now, the gears in the back are 2.73's factory highway gears with a factory posi, over the winter im switching it too 4.10 or 3.73 with a locker cause the posi stopped working, (too many burnouts from the previous owner) and i want better gearing. 1st to 2nd shift feels pretty good, nice spacing, 2nd to 3rd seems alittle quick some rpm change, and 4th/O.D is barely noticible. i took the car back out and it does go into 4th but i didnt even notice it..... Right now its got an edelbrock carb on it, with the factory gm kick down cable, with the factory kickdown bracket....... over the winter im doing motor work to it and it will be switched to a holley carb. Rear tires are 235/60/R15 on stock Z28 rims. Also this guy did everthing alttle backwards the engine is a 355 with a towing cam in it, which calls for a stock converter not this nice 2800 stall one...... he told me he was going to redo it heads up with a bigger cam in it, but money got tight and he had to sell it.......... so this winter im redoing the engine abd possibly the trans. So theres the whole scoop on the car...........
the geometry corrector will help to a degree but, more than likely with the rear gearing and the cam installed, it has changed the power curve and hence the early shifts. a governor recalibration kit can fix that. the only thing is, it may be best to wait till after you do the gear swap as it may actually get better with the gear change.
as always though, the cable needs to be completely tight at WOT or it will not shift properly.
the 3-4 shift on a 700 is typically soft to begin with and usually doesnt have much if any shift "feel" when it makes the 3-4 shift without some sort of kit or modification to the 3-4 circuit.
as far as the converter goes, id leave it in as well as it will work better with the cam than a stock converter will. it may be a hair bit too much stall but, for the thought of maybe a weekend blast here and there at the local track if you go, it will definitely help with the cars overall performance, especially the launch and 60 ft times.