I have an intermittent miss at idle. This is a new rebuild and it's not stock. I've checked the airgap in the distributor/installed right, replaced the plugs,wires, cap, and rotor. When I jump T and E1 nothing happens but a code 51. I'm trying to get my idlespeed and timing right to find the miss. I think it's the TPS but I'd like to check everything else first.