HI Eddie, hope you are well.I lost no et at all but the hood wasn't sealed, if i were you i'd definitely run a decent filter.
Mick

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Last edited by deaks; 08/30/17 07:05 PM.
69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36