Thet still have dist. but they use a crank trigger style ignition. When I get a chance I will go into it in more detail.
That would be great.
I did some research from The Saleen Book which put a little lite on the subject:
Referring to the last year of the S351, 1999:
"It was still one of the fastest cars on the road, but its 351-CID pushrod engines was making the S-351 harder to bring in line with EPA and CARB regulations with each passing year. Saleen's engine management "strategy" - that complicated balance of computer codes that controls every aspect of combustion - for the big Windsor had been developed
using the '96 Ford F-150 as a base. It was written around an exhaust system incorporating an H-pipe and a trio of oxygen sensors, a setup the state of California considered "deficient" as of the '97 model year. A CARB provision allowed this deficiency for two years, but Saleen had to gain special approval to continue 351 production in '99."
It was partly the complication of meeting an evaporative emissions system requirement that led to the S351s demise:
"Unlike the S-281 and GT, the S-351 had never been converted to a "returnless" fuel delivery system."
This suggests to me that for 96+ (OBD-II era) that they were possibly using the 351-based PCM, wiring, and sensors out of F150s. This might be confirmed if someone with an S351 could tell us if their cars have only 3 O2 sensors. I can confirm from my 97 GT and 98 V6 that these cars used four O2 sensors. And I suppose it makes sense that Saleen would not bother to try and integrate the original cars harness to the 351 since I believe they all started out as V6 models.