318 LA rebuild after losing a valve seat
I disagree. It wasn’t hard to figure out by reading the documentation included.
I disagree;
Each tooth on the sprocket represents I think 14*. If you botch the install and don't degree it for verification... your cam could be 14* retarded or 14* advanced. But if the keyway in the cam is off be a couple of degrees, then you gotta throw that into the pot, same with the crank keyway, and chain stretch. So if you don't degree your cam there is a lotta lotta room for error
Those dots and symbols are just there to help you find a base line.
To help you understand what say, 4degrees means;
4* advanced from straight up represents about 5 or 6 psi cylinder pressure increase. No big deal if you have low-cylinder pressure to begin with; and 4* advance also causes your power peak to come down about 100 rpm.
Of course 4* retard does the opposite. So just 4* either way represents a total difference of ~12 psi and 200 rpm.
And we haven't even talked about tuning issues.
What about 14*?
Well; I recently met a guy online that had discovered exactly that and found his cam advanced one tooth; and his engine was not happy about that,nor was he.
