This is my thinking as well. After I put all the plugs back in (after much swearing on #'s 5 & 7 due to the Hooker headers) I warmed up the motor and added some sea foam. After letting it run for about 3 minutes, I shut it off, let it set for 5 minutes, then went for an aggressive drive. The engine "seemed" to perform a tad better and smoother but that could be my imagination. I may end up taking the car to a machine shop in town that does valve jobs and have them take a look at my heads, especially the drivers side head since the three lowest numbers on on that side.
