A tid bit on the OPS. Use one from a 68 GTO. PS157. Fits other applications as well. Reads same ohms as the PS155. 0-80 psi. Same thing just a shorter housing. Fits under HEI. Downside it cost a little more than the PS155.
Came across a great solution by accident. No fittings or crap. Just straight up sensor.
Had a 68 GTO in the shop while doing a Gaugemarks oil gauge install on an 80 Camaro. Thought the fitting method was hokey and went on to find a better solution which happened to be 10 ft away at the time.
Note: you may have to clearance the intake slightly depending how far the FNPT threads have been opened.
Last edited by TaKid455; 02-11-2020 at 08:23 PM.
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