Dan
I have been tinkering with the timing recently
Due to the rebuild and the new cam and hydraulic lifters the timing marks are not accurate
I was timing by vacuum but I have now marked the flywheel at tdc to make it easier.

I believe there is a sticking valve as the vacuum a gauge drops slightly at irregular intervals but is other wise pretty smooth.

I appreciate the advice though as I try to dial this in

Rich


1953 3/4-Ton Chevy

In the Stovebolt Gallery
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If it can be built ... It can be fixed.

RB53