Re: Valve timing
I'm not exactly sure where you've ended up. In order to compare any sort of timing numbers, you'd have to know at what amount of lift they were taken at. Do you know what lift the 'books' numbers were generated at?
If not - then the exercise is futile. Also, make sure you have a timing cover on and that the cam backlash is correct - in that it is very easy for the cam to walk in/out and the timing to move along with it. For most engines, having the cam advanced a bit - is more desirable than having it retarded a bit.
In many modern camshaft grinds (for OHV setups) they'll instruct you to install it 4 degrees advanced (for those with adjustable timing sets). Also, many camshaft are ground with the advance built in (as many backyard engine builders don't know how to degree a cam and don't have the necessary tools, so by grinding them 4 degrees advanced and having the installer just install them with stock timing gears/chains, they are close enough to the goal).
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