Hi, I have installed malossi 112cc sports kit on 50s small frame vespa , I have had problems with inlet manifold supplied with kit . When swinging engine up the inlet bush on manifold touched frame and i counld not get it through , so i removed manifold swung engine up and bolted on rear shock , attached manifold with bush on( removed rubber bellows to see what was happening ) found that inlet manifold supplied was slightly off centre and higher than old 16/16/ carby inlet manifold , .When fitting 19/19 supplied carby , the carburetor could not fit on correctly and the throttle arm was touching frame , the only way to get carburetor on correctly was to angle carburetor so throttle arm did not touch frame ? Have i been given wrong inlet manifold ? only solution I see without bending pipe ( if correct one) is putting shorter rear shock on , original 335mm .could i fit px 320mm rear shock which may extend inlet manifold 15mm further so i could fit 19/19 carburetor properly without it touching frame , any suggestions ???? photos attached ..