increasing sb head velocity...587's

[DAVE JONES]

Is it worth the effort to try to increase the velocity of my 587 heads. I've finally made a decision to use my 587 castings and bring the valve sizes up to 2.02 and 1.74, I'm going with the 1.74 due to the fact that the exhaust on this head seems to have problems with flow and according to several sources this is one of the best ways to get the flow back. I am also going to port them. I know when I port them I will be increasing flow but I know that velocity also plays a major role in performance. I've heard that some people epoxy some of the lower dead spot so that the volume of the runner decreases, improves velocity, and only slightly decreases the flow. Is this true and do you recommend that I try this. If you do recommend that I do this what type of epoxy do I use and is there anything else I should watch for. I know that this can be tricky stuff but am willing to try if its going to be worth it. FYI....this isnt a drag car, its a street car, I just want it to really perform well. Thanks...DAVE

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