Now I focused on the throttle body entrance... It has shitty castings and lots of obstructions



Especially this big IACV lump


So I started sanding and cutting it down



And now look at this beautiful passageway! Not finished yet but looking damn good


Worked on the outside some more

Cut this tab off



And got rid of the piece on the top



Then got out the drill and started making holes



and smoothed it out for the most part




So I started cleaning out the front of the runners tonight.
Here is what I started with




and after some sanding






and a comparison shot


Ok so I finished the final porting today.

I installed the gasket and took a marker and traced out the difference


Here is what I was working with



Wasn't to bad.. but room for improvement



So I started grinding out the runners


Then smoothed them back down



Then evened them out and sanded them smooth and put the gasket back on to check it out


So finally got back to the RBC I've been working on...

found a high spot I didn't like so kept grinding it down


Then started smoothing everything with 80 grit and then 120




here is 120


air will flow nicely into this beast!