Inliners International Forums General Discussion Hi Performance Ebay internet find lump ports.

The ad says $1100 and the advantages are larger valves and better breathing, thusly more oomph on the asphalt. Tom ran those tests for street engines not race engines and the 194 head did not perform as well as the open chamber head. It's right there in the dyno read outs, with and without lump ports installed the 194 had lower HP and torque overall. Race heads are a whole different ball park, I have a set of large port Brodix heads that if I installed them on a street engine it would fall flat on it's face. Oranges to oranges and apples to apples.