This is getting annoying.I reset the TPS to 4.50 at WOT and the car is still knocking at 14psi.12 degrees to be exact.I raised the fuel pressure to 56# line off and there was no change.I found what I think might be the stock chip in the glovebox so I tried it.It must have alot less timing because the car is a slug at part throttle.But at WOT and 14 psi,there was only 6 degrees of retard at the top of third gear.Progress!I was told by a lot of people that 30# injectors should be able to support 15psi without a problem.What do you guys think?Would a different chip help any? dunno