Gas Mileage???

so for measuring the valvelift...I can do this on the edge of the rocker ? I have magnet dial watch... so if I set the tip on the edge of the rocker and turn the engine over..will the result be o.k ( because of the hydraulic tappet )

The carb runs good b.t.w. .

@ mattax.... yes I used a Thermoquad..nut unfortunatly the bowl has a crack...
and the fuel was dripping into the manifold.. Now I use the Holley with a square to spread bore adapater ..

Greetings Juergen