BBCs tend to idle a bit higher than SBCs, 750 RPM when it's up to temp is stock for the burb, and that works good with the mild cam. 850rpm or higher and it's stalled up against the converter pretty hard.
The stock 454ss idle is 100rpm lower (650rpm). Same engine and transmission. Probably just GMs way of giving it a bit of thump. lol.
94 Blazer, Turbo'd 350 TBI - DD
1991 2500 Suburban Adventure truck - 4wd conversion, 4-link F/R, 582ci CNP Big Block with Terminator X EFI backed by a 6L90 and twin stick'd NP205 t-case
2012 Porsche Panamera Turbo - Date night car :)
1979 16' Action Marine/"Johnny Cash" Merc Bridgeport Champ Motor - Metalflake Maniac
Hmmm... mine doesnt idle well when I try to get down to 700 rpm or so... when I thump the throttle (in park)... it revs up and then dips so low it nearly stall's... I'll have to work on it... massive trans problems now though... so it looks like that will have to take a back seat :(
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