My last job for today is the plenam install. On visiting the GBS factory a few weeks ago, Simon@GBS gave me the tip that the powder coated plenam chamber needs a little “black glue” to seal it to the cut down mounting plate. This prevents the plenam drawing in air through the sides of the plenam rather than through the throttle.
Before I could do this, the fuel rail needs to be removed and the lugs that remain in the block.
The plenam chamber and cut down fuel injector housing, then bolts into the block.
The throttle from the original manifold then fits to the end of the plenam and the air filter onto the end of that.