I think if you wanted to get the absolute most you could out of system like the Pypes transverse you could run 3" from the headers to an X then to reducers right where the pipes turn to go up over the axles.
Formulajones - thanks for all the links upthread. Particularly liked the vid of your car running at the track.
Does your exhaust have an X in it? I missed that if you mentioned the type of crossover.
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'72 Formula 400 Lucerne Blue, Blue Deluxe interior - My first car!
'73 Firebird 350/4-speed Black on Black, mix & match.
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