why obx just curious i had aem fuel regulator aem fuel rail aem fuel filter they are nicer products overall i wouldnt use obx it isnt as good as aem also aem has replacable fuel filter inserts and you can rebuild the regulator also use a b&m pressure gauge it runs about $25 from summit racing look up summit on the internet or give them a buzz 1 800 230 3030 they sell all this stuff also you should upgrade the oilpan put on a moroso one they run about 135 or 240 for a 5.5quart one which isnt really needed this will give you a little more higher rpm power
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