1990 mustang 5.0 trick flow heads, b303 cam, pistons rods, valves etc. oil pressure is around 30 at idle and 40-50 on the throttle is that good/normal? Running 20w50 full synthetic.

  1. That’s plenty of pressure. You only need around 10 at idle and 25-30 at 3000rpm per Ford in most cases. I had a similar engine back in the day E cam and 317 short block, and had similar pressures even in the heat of summer. You could probably free up a little HP stepping back to a normal weight oil like 10w30 and still hold good pressure.

  2. Okay thank you, the last owner told me to run 20w50 with Lucas oil stabilizer in it so that what’s I threw in.

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