I installed a new Timing chain and gears in my 460. I used my timing light to get it close to 12 deg BTC. now when I drive down the road and try to accelerate it doesn't want to shift and acts like going to die. If I keep my foot out of the accelerator and just putt along the tranny will shift and I can slowly pick up speed. When I shut it off after running for a bit its like pulling teeth to get it to start, any suggestions.
Thanks

 

Sounds like you might have put the distributor in one tooth off of #1 cylinder at TDC.

 

I'm having some timing problems myself but on My 460 you don't have to pull the dist. to change the timing set could you have possibly installed the gears one tooth off.

 

First off, How many miles on this engine?

A 12* timing setting is different on a new set of gears than a worn set of gears.

In other words a false setting of 12*

You need to find out how much slack there is in the gears & chain.

Does the mark jump around any when you are watching with the timing light?

 

There is a lot of miles on this engine, the old timing set jumped a tooth on me. So I decided to put a new set in, I lined up the marks, then rolled then engine back and forth , to make sure I was TDC. I pulled the valve cover off so I could double check. When I got everything back together, I had to rotate the distributer counter-clockwise almost all of the way to get it to 12*. When I had the light on it didn't appear to jump around but I could check again.

 

I'd sure check to make sure you have the distributor rotor pointing exactly at the #1 cylinder wire on the compression stroke with the crank pointer at TDC.