I have seen the same types of problems with AFR and trickflow heads as well as world products.
My brother went from stock camel hump heads to World products Sportsman II's and ran 5 tenths slower. The machine shop said his $1,100.00 heads were beyond repair. Then we were told by World products that that is just too bad.
I am at the point now where I am wondering who can you trust,
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92' LX-Big brakes, Lots and lots of suspension, GT40X heads, Ported cobra intake, stock cam, Vortech SC trim.
00' Lightning-Stock
88'CRX-13 second ego killer
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