This stalling is irregual (3 times per hour) and always starTs again after about 3 minutes sitting on the roadside. It generally (but not always )stalls when slowing down If it occurs at 35-40 moh I put it in 3rd pop the clutch but Nothing (no attempt to crank at all)I'M guessing ECU. my chevy experience tells methese units go all at once-This is my first BRICK. my hunch is rotar or dist. cap are out as well. I'm hunching bad coil would still allow low voltage attempt at starting to occur.And fuel trouble would still allow an attempt at cranking The clutch poping has me thinking some bright someone there might have educated guess better than mine. Muchas Gracias