quote:Originally posted by comp2:
...My brother had a comp cam that was out of specks by the way. ...
After I wrote my reply to BD this AM I realized I should haven mentioned that a cam needs to be degreed during istallation. If the cam indexing is a few degrees retarded, a cam like this can become more lumpy than it was designed to be, because the intake valve is closing a few degrees later than designed. The designer of this cam is trying to walk a line between a street cam and a race cam, and so the timing events are pushing the envelope of drivability, which in turn requires precision in the indexing of the cam to reach the designers goals. Based on that good ol' yellow book about Ford Performance, originally written in the '70s, the engine loses drivability if the intake valve closing event (measured at 0.050") is later than 40 degrees ABDC (memory?).
So BD, that's something I wanted to pass along, if your cam wasn't degreed during installation, it may help to do so. If it is found to be off, especially in the retarded direction, it would be advantageous to advance the cam to
crower's spec with a multi-indexed timing set.
your friend on the DTBB