On evilflay...
https://www.ebay.com/itm/EFI-Chevy-230-250-292-4-Barrel-Intake-With-Fuel-Rail-For-MPFI-AS0044/254923857747?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649
Interested in people's thoughts. I'm currently in possession of a Clifford and was looking at going TBI, but this would seem tempting... Although there is a certain poster on the board with one that might be a good alternative, if it can be had with this all set up (my local machine shop and I have a difference in opinion on the term 'precision').