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XfireZ51 · 07-18-2020

ZR2,

So ur saying the motor had a ?stumble? or miss at idle w original plugs, then developed a stumble with the EIX and AC plugs? Is that on acceleration, or just cruise? The 405hp motors I believe were supposed to be gapped at .050? while the 90-92 were .035?. The 5 heat range may also be a bit hot especially if u r first sorting the motor out.
Need some more detail on the issue.

07-18-2020	#112
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,685	Re: Ruff Idle ,Huge Loss of Power ZR2, So ur saying the motor had a ?stumble? or miss at idle w original plugs, then developed a stumble with the EIX and AC plugs? Is that on acceleration, or just cruise? The 405hp motors I believe were supposed to be gapped at .050? while the 90-92 were .035?. The 5 heat range may also be a bit hot especially if u r first sorting the motor out. Need some more detail on the issue.