from points to HEI
October 24th, 2010, 04:45 PM
#1
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Join Date: Jun 2009
Posts: 378
from points to HEI
I got my rebuilt 455 running,,,I changed over to a HEI system..What plug gap should I run ...And the timing I beleive is set at 10 per manual,,would this change going to a HEI system..
October 24th, 2010, 05:01 PM
#2
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Join Date: Jun 2008
Location: Near Muskegon Michigan
Posts: 1,015
I am not an expert but I am running .044 gap on the plugs, and 38 degrees total timing all in by 3 grand. 18 degrees initial timing. If you have an above stock cam, the timing in the manual will not be the same.
I use a dial back timing light to set mine also.
I use a dial back timing light to set mine also.
October 29th, 2010, 09:35 PM
#4
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Join Date: Oct 2010
Location: LaGrange KY
Posts: 128
I am running a .045 gap on my plugs with 14 degrees initial timing and a total of 36 all in by 3000 in my 442. I have a 10 degree advance can on the HEI. I set it up for the best performance. A little trial and error can make a big performance difference.
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