New jets needed?

ClarkDart70 said

I have it pushed back as far as it will go at WOT with very little movement. My linkage runs apparell with the valve cover after a bend was needed in the arm. I can't get it to down shift under hard acceleration either. I might have to play with it to get it right.
As far as the accellerator pump video... it suggests I have a nozzle size 35-40 for a lighter car.... think a 37 is a happy medium?

Click to expand...

I put up the vid for adjustment purposes only.

I just looked up the specs for that carb......Nozzle #35, Prim. jet #67 and the source of your hesitation......6.5" power valve. Nozzle size is more then enough with a dual plane manifold. Increasing the nozzle size would just be a crutch for the PV. You may need to jet up a size or two at some point, but that's not the issue right now.

With 20" of idle vacuum you'd have that around at cruise rpm also. So what's happening is you need way too much throttle opening (vacuum drop) for your part throttle enrichment. I'm gonna suggest you switch it out for a 10.5" valve.

Also, don't be shy about upping your initial timing. I'd think that engine would be alot happier at 12-14*

As far as the trans, i cant go much further then the linkage adjustment. Hopefully one of the trans guys will chime in on that.