Join Date: Aug 1999
Location: Ontario, Canada
Re: New heads, new cam, new RPM problem
Assuming that its a 69 with a quadrajet 4 bbl, I would venture a guess that the choke is coming on, and sitting on the high idle cam, this can because the rod from the thermostat is not adjusted properly, the choke thermostat may be loose on its mounting, or the thermostat may be just bad.
Heat riser not working proper, Port in intake under manifold plugged.
Coolant Thermostat stuck open engine not getting to operating temp.
You need to give us some more info after this..........