The motor came with the Torker on it and unfortunately I don't have a dual plane for a low deck engine. The distributor is an older unit, doesn't have the factory retard box, I believe it's a 67 unit. It also has lighter springs in it. I have sprayed all around the intake and carb with no change in idle. Don't have a tach hooked up, so I am not sure what the difference in rpm from park to in gear is. The carb is one that I rebuilt. I have always had good luck when rebuilding Holleys, but I have a new carb on my pickup that I will try. I know that one works well. Timing is set at 14 btdc. I am going to change to factory electronic system. Also, I degreed the cam when I put it in, so I know the cam was ground to the specs Hughes said it was. This car has been one big pain since I started working on it. I seem to get one thing fixed and find two more things messed up. A simple cam change shouldn't be this much trouble.