DIY Fuel pressure test gauge

Been out on a couple of test runs and she now starts fine so the WUR seems to have been the cold start culprit. Thanks for all the help forumites!
Runs well although idle seems to vary somewhat between 1100 (which it was before) and sometimes 1300-1500).
But overall so happy she starts and runs. Thinking now fuelling seems sorted of getting her on a rolling road for a proper tune up. Worth it?


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