Hozer, I think the heads are fine. They will make as much power as AFR's. I think the problem is the cam/intake match. The GT40 is a long tube made to make torque down low and the B-cam wants high rpm's. I would port the lower intake to get ready for the flowzilla and find a cam that will work well with the Kenne Bell. Here is a thread on the corral that talks about that subject. http://www.corral.net/forums/showthr...threadid=59596
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89 GT convertible, Kenny Brown level 5, Edelbrock performer, AFR 165's, Comp cams XE270HR, C&L 76, 24# inj, Crane 1.7's, 70mm BBK throttle body 298.2 hp 328.2 tq Mustang dyno
"Our lady of blessed acceleration don't fail me now" Elwood Blues
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