Car breaking up
Need opinions/help on trying to resolve a missing (breaking up)problem at about 3500 to WOT. Car has a turbo setup with all the matching equipment, plugs are gapped to .028 they are autolite 103's. I have gt40p heads, f cam, exploder intake both heads and intake ported heads have good springs. I have a new cap and rotor, wires and cranecams ignition box and coil. I have been datalogging and when it breaks up the timing is logging 18degrees and my AFR gage is 11.8 only pulling about 7psi. Seems like it misses more when i have been driving around for a bit. Could the PIP in the distributor or the distributor itself be bad (stock)or when it gets hot? If so how can i test it. Also I did have to relocate the module into the fender due to the downpipe. Does this have to be bolted down for good ground?? Suggestions welcome. Thanks.