Better exhaust or new cam?

[Dwight]

we need more details on the motor. Have you had the car dyno'ed?

Sidepipe typical lose 40 to 100 hp on a Cobra.

You can install better sidepipe mufflers for $150 plus the welding and the cost of the coating. Are your pipe ceramic or paint?

Cam change alone may not increase your hp. Your intake, carb, heads and cam work together. Your exhaust system is part of the puzzel also.

Air in Air out

If money is not a problem then you can changes parts out till you get the hp you want. But I'm always on a budget so I have to plan everything so it will work together and produce the max hp for the dollar.

Dwight

[undy]

Poor eshaust will kill a heavier cam and in a lot of cases the engine will yield LESS HP.

[Ant]

[quote=Dwight;1092160]we need more details on the motor. Have you had the car dyno'ed?

Sidepipe typical lose 40 to 100 hp on a Cobra.

I agree with most of what you have said, but I am wondering how sidepipes typically loose 40 to 100hp on a cobra?
We made a set of headers for my KC Ford Yates 358 based engine which dynoed at well over 600bhp, my headers are stepped and go into Chris Hills merge collectors and back to 3" perf mufflers that I am in the process of making, maybe I should go bigger with 3.5" core mufflers, I have read where too big slows the air flow or just doesnt make a difference!