2.50 exhaust or 3 inch

[john-dickjr]

300 motor...13-1 compression..head work..big solid cam..650 carb.....4.56 gear range..straight drag car..unsure if it would be better using a dual 2.5 inch exhaust or a single 3 inch ,

 

[bubba22349]

I don't think there would be much of a difference when you calculate it all out.

 

[wallaka]

Very similar flow rates...3" is half the weight.