SBC With Longtubes True Dual Straight VS Glasspacks

Exhaust comparison on my 81 c10 Chevy 350, mild build rpm air gap intake, long tube headers, comp cams XE274H, Stock 350 trans and hwy rear gears for now.

Longtubes into true dual 2.5” dumped just ahead of the rear axle. Vs the same setup but with 24” glass packs added.

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