on a rb26, and while the heads off i was mating all the throttle bodies inlet plenum sandwich plate all together, the castings awfull and dont match up well at all.
So grinding out begin and got very carried away lol. Wat you guys think?

First example.



Bit of smoothing



Then started on the head.







Spent 25 hours by this point, so time consuming.







Still waiting for a flapper to make the finish better, but thats were im at. Way i see it gotta flow better than standard.

 

u think this will make much difference mate?

 

they look big ports! - can you go too big in some cases?

 

ive not taken to much out, sometimes the angle of the pics doesent help, but time will tell, yeah they do say you can go to big oooops lol.