gt2871r is a very good common up grade on the rb25. .64 rear is great for easy spool but for a big v6 might need the .86. im planing to run a 2860rs .64 on the 4cyl.
i wouldnt mind seing a video of the car from the out side mabye even a little skid or something.
"Alfa Romeo built to excite .. Some dream of driving the ideal.. I drive it"