IMO, id go with vic jr. heads and like mentioned a nice custom cam an defintely bigger intake an u should see pretty close to ur 400rwhp. an also i second at least 10:1 compression... but i know its hard with all the smog issues u got over there. good luck
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347- ported X heads, Xcam , RPM air-gap intake, 650 holley DP, 10:5 comp., equal lenght shorties, pullies, MSD ignition, pro 5.0 shifter. stock fuel system !!
best ET: 11.95 @113 1.64 60 foots
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