I need some advice. I purchased my Chevy II with a rebuilt 230 inline in it. The seller didn't know much about the rebuild, although I did get some of the receipts. I've now decided to install a different cam and I'm at the point where I've removed the front cover, exposing the cam and crank gears. I was surprised to see that the small timing marks on the cam gear and the crank gear do not line up next to one another as they should. In fact, the dot on the cam is 180 degrees away from the dot on the crank. The car seemed to run OK. What's the impact on horsepower from this error? Should I install the new cam in this same manner, or should I install the new cam with the timing marks next to one another as they should be? Thanks for help.
