I was going to get a new engine for my rs4 and I am debating on the picco .12 red dot and the o.s 18 tz. Ive heard that .12s top out faster then .18s. There is one thing, my rs4 is set up for a rotary carb and the picco is a slide, ive also heard that slide carbs are better for on-road cars. Is there a slide carb conversion kit that i can get?

Anyway other suggestions for engines are welcome.


I need a pipe too..somthing with really high top end.


Thanks