Doesn't matter. You're going to have to adjust ignition timing anyway later by turning the distributor.
I'm not clear on the 4 degrees thing. That modification is normally done at the camshaft sprocket with an offset dowel pin, key way, or offset bolt holes. If the crankshaft sprocket is advanced four degrees on the crankshaft, that will put the camshaft two degrees advanced which is a lot. That is going to greatly increase the torque on the high end. That's used for police cars that need to go from 60 to 90 mph very quickly. The trade-off is it's going to be real doggy on the low end and act like a small V-6. Motor home engines use camshafts that are retarded about one degree to give them lots of low-end torque to get going from a stop, but the trade-off is they need a tail wind to go from 60 to 65 mph.
May 7, 2013 at 6:35 PM
