Revision as of 00:05, 7 November 2012
Also see Performance
137 RWHP A12 14:1 compression 40mm dellortoes steel rods crank fire ignition
143 RWHP 8800 rpm redline .040 overbored A12 (total = 1204 cc) Ported head 40mm Webers competition cam and valve train
154 RWHP A15 25 mm inlet restrictor 7500 rpm