Uhmmmm, the Z28 302, the BOSS 302, and the T/A block 340 destroked to 305 were all for one purpose....the TransAm racing series. If You had even the slightest clue of what You are talking about, You'd know that the TransAm teams running the BOSS 302s ended up filling about the whole bottom 1/3 of the 4V Cleveland Heads Intake ports because they were F*(king dogs getting back in the throttle & apexing/track outs on slower turns...fact...no amount of postumus dyno voodoo is going to change the reality..have a nice day.