by dscscotty » Tue Oct 03, 2017 9:58 pm
Rb 20's are a lot more tractable than are given credit for, I'd stay away from longer strokes unless you modify the port timings to suit, choose the right pipe it will make a lot of difference to the power delivery, Very reliable kits, just look at the LCGB Production class were in two years there has only been one cylinder failure which was down to lean jetting- Good Luck