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regular steel single edge blades and/or good penknife fine on those tough iron heads & china rail ... use a bit more care on aluminum manifold.
If you're Not subject to NCRS judging ... and have time to get em ... a set of new intake bolts in the "reduced head size with 12-point" version makes it a lot easier to get to & tighten them ... a dab of permatex #2 or rtv on threads helps prevent oil creep. Don't use stainless bolts.
Don't use stainless? Says who? ARP stainless are number one sellers.
Last edited by HeadsU.P.; Mar 15, 2019 at 04:38 PM.
So I just got everything back together tonight and fired it up. It seemed to run about the same so I decided to attach the vacuum gauge to see if it would read any different but it unfortunately it still jumped around. So I decided to test other vacuum ports (I was currently hooked up to the head light vacuum source) so I attached it to the pcv vacuum and still the same jumping. So finally I attached it to the brake booster port and it only slightly moved around about +- a half an in of Mercury so it seemed better. After noticing this I thought my problem could be that the brake booster has a vacuum leak and I already thought it did before all this based on other stuff but anyway. I plugged the brake booster hose so it was out if the equation and tried measuring off the pcv port again but the same jumping happened this time too. so what do you guys think it happening here?