318 Compression ratio

The beauty of the EFB, EB, and Tquad, it is really isn't "too big"...... Because it only feeds the engine the air it can use. Vacuum secondaries, so to speak, had that argument before, yes, the bottom flies are mechanical, but the weighted/sprung trap door makes them vac operated.

You could put the BB TQ on a slant, and it logically wouldn't be too big. The secondaries just wouldn't open.