Phil and LLoyd just have very good reputations for being able to wring a lot of power out of LTx heads, and youre paying for that proven power....but IMO any other reputable head man should be able to do it, a good(not the best) port job is still better than no port job at all
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EB
99 Riviera, Bone stock, 14.34 @ 96 "Walking 5.0's in luxury" RIP
95 Cherokee, Bone stock 16.2 @ 83 "Treeing your 3rd gen and beating it to the line despite trapping less....and looking better"
93 TA, Bone stock, 13.8 @ 100 "Beating ****** drivers in ****** LS1's"
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R.I.P. Tia