the LT4 kit is pretty tame compared to what is out there, i suggest you do a lil more research, ported LT1 heads outflow box LT4's and are a lot cheaper, even from a distinguished porter (AI, and the hot cam is only a small step up from the stock one....i say 306 at the least
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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