FYI the MSD super conductor wires guarentee 50 ohms or less per ft .also many who race the LS1's favor the NGK plugs ,I ran them in my 2000 Z28 6 speed car that had a 382 stroker with 450 rwh (dynoed) 12.36 in the 1/4 mile ON STREET TIRES .I ran the copper Tr6 (a colder than stock plug) with great results .I would use the correct heat range and the platinum plated plugs in a H2,or the AC Delco's. the best bang for the buck in wires are the Summit wires $54.95 8.5 mm made by taylor part #SUM-887830 .40 TO 50 OHMS PER FT SPIRAL WOUND COPPER .VERY NICE FOR THE MONEY.
