Aftermarket cams are pricy, but Comp Cams sell them.
The only real difference is duration, there's so much wall area, increasing lift beyond stock isn't nearly as effective.
A set of 96 Cobra cams is as good as it gets, stock.
I got a set of heads off a conti, with the XR3E cams, but that was really lucky.
You know, I found out last night that the two end ports are much bigger (volume) than the rest, without any mods; it's just the way they're cast.
Nick McKenney quote: (actually from na svt)
If you are going to go 4V find a 99+ Continental and take the heads complete. Degree the cams to 106-108 intake and leave the exhaust at 110 (the conti intake cams are bigger than the Marks), it will require a serious mod to the secondary gears to do this. Combine with a Mach 1 intake and thats as good as it gets without spending serious cash.
NA SVT: The 96-98 intake cams will make about 20 more hp than the MAch intakes (cams). The difference between the 96-98s and the 99s is only 2 deg so the power difference is also little.
Red '96 Cougar XR-7 240k mi. '02 4R70W, PST DS : '03 PI engine, 04 maf, 24lb injectors, 2.5" exhaust, '02 4r70w + Jmod, DirtyD0g TC + cooler + 3/8" lines, 255 walbro fp. Alpine system.
Black '96 Cougar XR-7 (Lazarus) 210k mi PI Intake, '02 4R70W, Jmod, PST DS, GrogTune, Konis, Mark LCA+Poly, racecougar Custom Engine Chain, and JL and racecougar Bracing.
Black '97 Tbird Limited Edition, '02 4R70W, 255 walbro, PST DS, PBR Brakes&SS lines, Toicko Blues & Springs, GrogTune.
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Last edited by Grog6; 11-30-2018 at 03:55 PM.