Dyno run/ missing out maybe? Low hp/tq
Combo= combination. This refers to camshaft/compression/ cylinder head specifications. If you bought Jasper,should have a detail sheet/ online specification link. The more important part: what kind of carburetor/intake manifold/ distributor/ exhaust (headers /exhaust manifolds? what size exhaust?). . Who assembled it,set timing( at idle total at 2500-3000 r.p.m. /idle smixture & speed. These all work together in harmony,to make you lay rubber & smile. That's why you have one?(lol). Pictures help in place of explanation at times. Give people here the info,good things can happen.Edit: rear tire size,gear ratio and transmission information ,helps.For what it's worth,ignore that quick dyno pull. All it says,you got work to do...