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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Well. Started work on the heads. These are early Delkron heads. They have AVnV 2,020 intakes and 1.610 exhausts. I was only betting about 275 cfm @28 (corrected from 10) in last time I worked on then which was about 2008. I've learned a bit since then so figure I'd try to get more. Unfortunately , the flow bench smoked.. Literally.
This happened once before and I had to fix it... The issue is that they ran fan wires through pressboard using screws and terminals. They eventually come loose and create a resistance that burns the press board.
Yeah you wont get a good reading that way.. I would've thought with the bigger intake you would a little better flow.. Maybe you should increase the exhaust to a 1.63" or even a 1.65" with that large of an intake the ratio should be good..