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So, I just finished a rebuild from the head up.
Every gasket, seal belt n' hose i've basically done all that.
Obviously that means I had to take the throttle cables off (one going to transmission and the other to gas pedal).
Now that I've re-attached everything and taken the car for a spin... I'm finding it revs kinda high before shifting.
Thought it was because the transmission side cable wasn't tight enough.. so I adjusted it back a bit more.
Seems to still rev pretty high before shifting.
Don't remember it doing that before I tore it down... but it's been 9 months and just about everything short of the block/transmission getting replaced, cleaned etc.
Can you post a picture of this cable you speak of that goes to the transmission? You haven't said that you've removed the cable going to the THROTTLE BODY but I if you did you probably have it too tight.
I keep back it off and it's gotten better and better each time.
At first I thought I didn't have it tightened enough! So when I over tightened it it was like a fun race car... but the shifts were too hard... but it revved real high and went really fast in first hehe.
Now as I keep losening and losening it (putting less tension on the cable) it's shifting sooner and lighter shifts.
I guess I keep doing that till I find the sweet spot.
When you floor the gas, the cable to the transmission is pulled tighter, which moves the lever on the transmission and makes it "kick down" or in other words rev higher in each gear before shifting.
Thus if you are getting the high rev before shifting though the gas is not floored, that means the cable is too tight.