So I don't have torqhead and I have not tuned an LS (though I've seen HPTuners and the 411 PCM is indeed very powerful). But I have tuned a number of LT1s and the gifted enthusiasts who have developed eehack and the $EE definition in TunerPro have really opened up a lot of abilities with the stock '94-95 LT1 PCM including built-in wideband support, real-time spark and fuel adjustment, and adjustable injection timing which can help cure low rpm closed loop fueling instability.
The other challenge is that you most likely have to learn how to tune it yourself since tuners don't want to mess with non-LS stuff. That said, if you can read, do basic wiring and are familiar with Microsoft Excel, you can tune.
If I was running high-rpm or forced induction, I would definitely move away from the stock 94-95 LT1 PCM. Forced induction can be done using the half-MAF trick but it's still a band-aid. The LT1 does run out of MAF resolution headroom over 475hp or so, just based on my own tuning experience. Again, there's ways around it, but that is a capability limit.
For a normally aspirated street car that doesn't see high rpm, I think you could better spend $1600 elsewhere.
"The unexamined life is not worth living." - Socrates
Last edited by sherlock9c1; 05-06-2019 at 07:58 AM.