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my67chevytruck · 06-15-2010, 05:16 PM

If i recall correctly you need an updated tach wire for HEI vs. using the original wiring
....

here is a thread on the topic:

http://67-72chevytrucks.com/vboard/s...=hei+tach+wire

06-15-2010, 05:16 PM	#2
my67chevytruck Under Construction Join Date: Oct 2007 Location: Midlothian,TX (DFW) Posts: 4,555	Re: Factory tach accuracy If i recall correctly you need an updated tach wire for HEI vs. using the original wiring .... here is a thread on the topic: http://67-72chevytrucks.com/vboard/s...=hei+tach+wire __________________ Heath subscribe to the board here: http://67-72chevytrucks.com/vboard/payments.php http://67-72chevytrucks.com/vboard/s...d.php?t=157669 FAQ how to's 1956 Chevy Apache 1967 C10 SWB FleetSide (under construction) 1969 K10 SWB FleetSide (Future Build) 1972 C10 SWB Stepside (Future Build) 56 chevy truck : http://www.cardomain.com/ride/2955823/1 67 truck build: http://www.67-72chevytrucks.com/vboard/showthread.php?t=281357/1 69 k10: http://67-72chevytrucks.com/vboard/s...d.php?t=389470 Last edited by my67chevytruck; 06-15-2010 at 05:19 PM.