i just got this ported stock upper and lower intake for 5.0 from this guy who says it was professionally ported a few years back before they had aftermarket intakes. The upper intake has been cut on the opposite end of the throttle body so that the porter could get inside there to take some material off and then it was rewelded back on. The lower intake has been professionally ported by somebody. He says i'll probably get about 20 horses out of it and also said he felt a difference when he first put it on. Should I stick with it or buy an aftermarket intake?
You said you already had it, so put it on and try it - all it'll cost is a $15 gasket set and I'm bettin you're gonna really be surprised.
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Tom Moss
88 GT 5spd Vert 3:73s, Flowmaster catbacks, stock cam +4°, GT40P heads & 1.7 rockers, Jet-Hot coated MAC P headers, 97 Explorer intake, 65mm TB and 19# Explorer injectors. 277RWHP/330RWTQ
if the connectors are different, perhaps all you have to do is get the plugs for them, then rewire them. however, if they're too tall or something, then I can see some problems.
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89 GT Convertible 306, Port Polished GT40 Aluminum Heads,Self polished GT40 Upper and lower Intake, 30 lbs injectors, carter intank fuel pump, bosch piggyback inline fuel pump, Intercooled Procharger, Southside lower rear control arms, suspension technik lowering springs, tokico rear shocks, 4:11 gears, aluminum driveshaft, weld in subframe connectors
ported stock intake 
