Did a few things over the weekend

[MightyFine69]

I have a 1969 K20 with the original engine with only about 40k miles on it. My motors manual says the stock plug is an AC Delco R44. They don't make R44's any more (at least that's what I have been told by the parts stores). So I have been running R43's in her. I switched to R45's on saturday, and the engine seems to run much better, and seems to have more power going down the road. The next thing I did was to replace the old negative wire that went from the battery to a piece of flat steel that bolted to the passenger side head. I used a 2 guage wire from the battery to the head, and then ran a new ground strap from the head to the frame. That seemed to give the motor a little more power also. Has anyone else had a similar experience? If so, could you explain why the power seemed to improve? Maybe there is a mechanic out there who could fill me in. By the way, I still have my old points distributor with a set of Accel points and an Accel Super Stock coil. I know I should switch to HEI, but I like the simplicity of points, and I read the thread on here about the guy who had the HEI go bad on him. It seems like points might be a little more reliable in the long run.