Thread: Just a little Header venting - Doug's 1 7/8" vs IA2
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Old 07-04-2026, 09:51 AM
punkin punkin is offline
Senior Chief
  
Join Date: Aug 2016
Location: Northern Colorado
Posts: 343
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Yikes!

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1968 Firebird
IA2 522
340 E-heads
Northwind 950 Carb
4L80E
3.50:1 Rear

1969 Firebird
IA2 535
Northwind (Induction undetermined)
3.50:1 Rear
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