I like the idea of FI on older classic cars. Do you recall the camshaft profile that was used? Early in the aftermarket FI game a wider LSA (113 vs 110) was recommended because of the need for vacuum. Perhaps current systems can be programmed without the need for higher engine vacuum??I've used the Holley system (their TBI system) on an S-10 with a 355 in it that was warmed over and run on nitrous (this was my buddy's dad's truck, we installed it). It works fantastically well, the kit we had used a wide-band and was self-tuning. It was extremely reliable and provided a big improvement in gas mileage and behaviour, I'd highly recommend it.