After a fresh rebuild no block decking or head milling I pulled the aluminum intake on the 87 SBC to have it polished after 3200 miles with no previous issues. The polisher did not touch any of the mating surfaces. Did not reinstall new torque plus intake gaskets .060 like I had on it up until the 3200 miles. Used fel-pro ďblueĒ teflon coated intake gaskets .060. The first thing I noticed was some smoking out of the right side of the exhaust. Not right away but after itís warm. At idle a light bit of smoke comes out, not much but throttle on, and there is more. Have not done this yet under a load. The heads have the positive seal valve seals I had to have the outside of the valve guide bosses cut for installation. Checked those they looked good. Checked timing, checked vacuum with regards to idle screw settings 600 holley single feed (1850). PCV is working have it on the right side but removed it for diagnosis. Checked plugs seems that I have a rich condition both sides. Plug 8 gooey wet. Pulled the intake back off seams that I may have had a leak path on the bottom corner of intake runner 8. Reinstalled with fel-pro printoseal .060 thick, which they recommended. Still the same condition. I did notice something I may have missed before a very light hint of blue smoke coming from the hole where I have the PCV removed. Funny thing I donít see the hint of blue coming from the right side valve cover from where the breather would be mounted that I removed. I guess a leak down would tell me about the rings. The compression is in on all. Iím a few nerves away from puling the engine to check the rings. Any ideas?
BTW this engine was built in 1995.