lt1, right up our alley!

for an lt1 with offroad/race config, i'd run it naked to eliminate failure points. baseline it on o2s and knock sensor (if you still have any) without a maf, then yank the knock sensor, o2 sensors, anything like that and hand tune it. none of that crap matters on a race engine.

i even run my street cars open loop speed density now, the fine tuning ability you have for fueling is awesome....

definitely do try eehack, run it in 'f-body' mode (even though it's a b-body engine), you can try messing with coarse adjustments to timing advance while you're driving