ANDY, is there any dual plane that would be worthwhile to test on your short block with the TF 240 ?
I don't think so. Only half way decent dual plane for a B engine is the Performer RPM and I wouldn't want to run it on a 700 hp engine. It would kill 100 hp and mess up the mixture for some of the cylinders.
As they do on anything w/compression and hp imo................garbage.......
Depends on your definition of "compression and hp", doesn't it?
If you're running 13:1 and 800+, a Performer RPM likely is not part of the build anyway...