holley 3810 fast idle

[Timothy B.]

Can someone give me the GM published spec for fast idle RPM for my 3810 Holley. I read the Chiltons book and it lists 2000 RPM with hot engine but I keep thinking 1750 for some reason..

Thanks in advance, Tim

[William C.]

Re: holley 3810 fast idle

GM Overhaul Manual shows 2000RPM for 67 300 & 350HP. I think the judges are looking for 1300RPM cold fast idle.

[Timothy B.]

Re: holley 3810 fast idle

William,

Thanks for the response to my question about the Holley fast idle. I will set it at 2000 rpm, I think the Carter AFB is set at 1750.

[Mike M.]

Re: holley 3810 fast idle

FWIW...
The '63-'67 Ops Manual & PV Test Guide states.
" approximate fast idle, '66-67 327 engines... 1500 - 1800 RPM"
HaND

[Timothy B.]

Re: holley 3810 fast idle

Mike,
If you set it at 2000 RPM hot, the idle probably falls in the range you describe when the engine is cold..