Edelbrock ProFlo 2 EFI help

[Nasty-Z]

This is for a friend of mine with a 496 BBC in a '92 454SS. He has retained the 4L80E and original PCM to run the trans , he has piggybacked TPS , CTS , and MAP and the trans shifts fine .

The problem we are having is Edelbrock had him modify a large cap HEI with a hall effect sensor to trigger their EFI so the original distributor and 4 pin plug that once sent a siginal to the PCM for engine rpm is gone . As you can probably figure the trans will shift but the convertor will not lock up due to a lack of an engine RPM siginal to the original PCM.

Would anyone here have a clue as to what siginal on which of the original 4 pin distributor plug we would need to aquire and where it might come from on the Edelbrock modified distributor so the convertor may lock up properly .

Here : http://www.edelbrock.com/automotive_...3000/35510.pdf are the instructions for the system , on page 21 it shows the distributor conversion

Any more info needed , please ask.

Thanks

TOM