New Junior member

[Bob Drye]

Without cleaning the ports I have to go with compression.

 

[Renegade]

Hows that go.... No replacement for displacement.

 

[sneaks12303]

Hows that go.... No replacement for displacement.

Yep , In my book its Displacement , compression , and then flow...Fuel type (alky vs gas vs nitro) might even be more important than flow..