I'm trying to source two Amal GP2 T3 clip mounted carburettors in 1 3/8" diameter for my race outfit. Preferably a new or very good used pair would be ideal but a miss-matched set of GP1 and GP2 would work as I only need the GP2 for the front cylinder. I've tried Amal but they only make flange mounted GP1 type. Any advice on who could supply the GP2 type would be much appreciated. Cheers David.