Hey all. I am in need of help again. The car is a 1995 Mustang GT with the 302, 5 speed, ~90 miles. It?s mostly stock except for an air intake. I have noticed it intermittantly knocking when the engine is warm and at WOT usually between 2800 and 4000 RPM in 3rd and 4th gear. I only run premium fuel (91 octane) in it and it seems fine otherwise. Plugs, wires, cap and rotor were changed 2 years ago along with air and fuel filter. It may have been knocking for some time but it?s a convertible so unless the top is down and next to some sort of concrete wall, you can?t really hear it. I checked the timing and am running at 9 degrees BTDC. Elevation is roughly 6000ft but I drove it to Las Vegas (~2000 foot elevation) a month ago and it knocked even worse there. Anyone have any idea where to start? Fuel pressure test? Back the timing off more?
TIA,
Derek