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The eforce is a great, trouble free unit, that is proven reliable over a few years now. I am sure the heartbeat is also but haven't seen any results yet that show me one is better than the other.
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2007 C6 vert, auto, F55, LT3
LME LS402 , WCCH 245 Heads, Pat G. Custom cam
YSI / 3.0 pulley, ARH 1 7/8 headers, NPP
Dewitts / dual spals, A&A dual pump fuel system.
3.42 polished gears, hardened shafts, Alky control meth, Cartech line lock, ECS axle loops, Trans brace, 6L80 built by me.
ID 1000 injectors, comp rockers, Morel lifters, BT springs, Trend 3/8 pushrods, ATI 10% OD Damper
Circle D Triple Disc stall
1009 RWHP @ 7000, 817 RWTQ @ 6000,
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