HBjet:
Thunderbutt:
80lb start 60lb run. This always puzzles me! Higher pressure at idle and less on the throttle. My motor makes about 65 at idle and 85 at throttle!
HBjet What I ment was 80 when first started (cold) then 60 after hot
Thunderbutt:
I take mine on the plug right above #1 cylinder, mechanical gauge. I think the farther away from the filter gives you the best reading. 80lb start 60lb run. Let me clean up the rest of my post.
I ment below the #1 cylinder