Port and polish throttle body

[Smokin_GMC]

thanks, would you happen to know what size the stocker is?

[ff_jeff]

78mm is the size of the stock tbody. make sure not to remove material between the butterfly, and the outer edge. when the plate is closed, you should NOT be able to see arround the edges. In other words if you lay the throttle body on the table, and have it facing up like if it were still on the engine. Only remove material from the plate up. Dont spend too much time in one spot, It will cause waves, and/or damage to the aluminium.

[green6.0]

only port up to the tb blade, if you go all the way though your truck will idle too high or throw it in REDUCED ENGINE POWER.