Dangers of fuel Enrichment

[Bill Edgeworth]

This may be of interest to those of you who run extra Injectors for
enrichment that spray into the plenum. (Like on a paxton blow through
kit that has extra injectors on top side of the throttle body)
The other weekend I was at the races and saw a Hemi Cuda that was
sporting the new Mopar single 4 intake as opposed to the Rat Roaster he
previously ran. (This manifold was talked about on the list not to long
ago).
I asked him how much better the new manifold was than the Rat Roaster
and he explained that the only reason he changed was that his Rat
Roaster no longer existed.
He had a carb backfire during cranking and with the huge plenum on the
Manifold being filled with air and fuel it shattered the manifold.
Backfires of this type generally are not a problem with efi but if
anyone is running a big plenum that has enrichment during cranking
beware!

Bill Edgeworth