Exhaust System

[lsrjunkie]

Show's how narrow minded we can get when yer focused on one specific class and the rules for that class!

[Stan Back]

. . . and Street Roadster.  Don't know about the rest.

[kiwi belly tank]

I wasn't talking about your A series BMC engine Chris. My experience comes from running old "American" iron.
  Sid.

[will6er]

Joe-

Competition Coupe and Altered have no exhaust restrictions, except - they may not go through the roof in Altered

Will

[Milwaukee Midget]

I wasn't talking about your A series BMC engine Chris. My experience comes from running old "American" iron.
 Sid.

Sid - my bad - I thought the pushrods on the Jimmy were on the side with the ports.  

Learning while pontificating, I am . . .

Yeah - I'd agree.  If there's room to grind it out and get similar or better flow, and the class rules allow it, I'd say fence it and go for it.

But I will still recommend Vizard's book on the A-series for anyone forced to deal with shared ports, regardless of which side of the pond the engine was built.