After finding problems with The Rubber Duck at the dragstrip, we headed right to the chassis dyno to figure it out. We left the dyno with more horsepower and a happier car. This video gives a breakdown of the changes and we double check our camshaft valve lash and valve springs at home in my garage. Hope you enjoy it. Next stop, is back to the dragstrip to see if we can finally run an 8 second pass in my 1967 Pontiac Firebird.