Dual TBI Setup?

[Dave Williams]

-> > itself a single TBI won't pull in the air or inject the fuel to
-> keep a 383  going,

> Really?  What the heck were those tb's doing on the 454's??

 The stock GM TBI doesn't flow enough for a stock Chevy 454 that's run
hard, as I found out with a friend's wrecker.  We finally gave up and
put a carb on it.   Picked up noticeably more Butt-O-Meter power over
4000 RPM, which is where the truck spends a lot of time; hills that
required downshifting to second with the TBI are easily pulled by the
carb.  Fuel logs report about a 30% increase in fuel economy as well.

 There was nothing wrong with the EFI - it was in tiptop condition and
had been tweaked by Street & Performance, which is local to us.  It's
just that the overall system was unable to handle a hard working 454 in
a 12,000 pound vehicle towing 3,000 to 10,000 pounds at 75mph.  A larger
throttle body and *much* bigger injectors would probably have fixed the
problem, but the cost/benefit ratio wasn't good for that.

==dave.williams at chaos.lrk.ar.us======================================
I've got a secret / I've been hiding / under my skin / | Who are you?
my heart is human / my blood is boiling / my brain IBM |   who, who?
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