i personally wouldnt use welding cable, or if you do, make sure you use a good woven loom around it.. it takes forever to pull it thru, but its much better than plastic loom.. i work at an alternator/starter shop and too many times i have seen someone use welding cable, and it rubs in two somewhere and shorts a lot of sh!t out.. it also is not very oil/gas resistant as it eats the coating off.. also, never EVER buy battery cables from any parts house, unless it is going on your lawn mower, their 4 ga cable has the same amount of copper as a good 8 ga cable has.. and NEVER use bolt on cable ends, always use either crimp on or solder on.. just a lil advice from a 12Volt guy..
Truck: 05 GMC CCSB SLT Z71,
Go Faster: 5.3, 219/227 .607/.614 112, milled heads, eBay CAI, Circle D 2800, 3030 Built 60E, E-Fans, 3030 Tuned, LT's, Spintech Muffler, DuraGrip w/ 3.73's
Look Better: 10K HID's lows & fogs, tinted Chevy tails