since having the webers fitted i hadnt had chance to get them set up and i went on a rolling road few years back it did 75bhp this tome it did 73bhp with twin 40s, fast road cam, vernier pulley set up, port and polished head, 4 branch and fully heat wrapped exhaust to back box but i know why my head gasket had failed and piston rings worn bad so engine got stripped then i sent it to dion bee brother and hes doing a full rebuild for me