I have an 1835 VW with a 34mm Revflow carb and a 52x47 prop. I ran it the other day and reached peak RPM at about 2/3ds throttle. More throttle killed the engine. I asked Joe Horvath about it and he replied :
"A 34mm carb for an 1835cc engine is extremely large. The air flow that the engine needs is considerably less than what a 34 will flow. Therefore, you may reach max engine rpm of 3200 with partial throttle, but the mixture may be rich. .... Trying to tune a 34mm carb to the 1835cc engine will not be easy. ....." Apparently I would be better off with a smaller carburator. If anyone out ther has a 30 or 32mm revflow they would like to sell or trade, contact me off list (ankerst...@embarqmail.com). Brad Ankerstar, SW Ohio N774A, KR2R, almost there. 513 932-2514