Keep the stock valves for sure. The E7's are not the best flowing heads so you have to make HP my moving the air at a high velocity.
I liked my old combo better than my new one. It was much more streetable and felt way stronger in the low rpms.
I used to have ported and milled E7's
Explorer intake.
and the stock cam
Went 13.66 @102 in a full weight 88GT vert.
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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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