is there any thing else I should do while I have down this far?? I really like my mileage(10%) pulley only and no cats. Every thing is stock(140k). The coolant was seeping out the sides is why I'm doing the HG's. I'd love to get more out of it but the 22mpg is hard to let go. The wp has been replaced along with the belts and hoses. Just looking for tips, thanks.