|
Re: Cold blooded truck
In addition to checking your choke, verify that the exhaust stove pipe valve moves to open when the engine warms up. Forcing full heat through the intake manifold with a hot engine will damage the carb and cause a run rich condition.
You want the THERMAC flap to be closed on a cold engine and open on a hot one.
Noticed you have Colorado location tag. What altitude are you at? If the truck is setup for near sea level and you are at 5000+, your carb is too rich.
Assuming a stock or near stock SBC, your thermostat should be a 195. A lot of folks will put in a 160 trying to fix a cooling issue rather then fix the real problem. The stock SBC wants a 195 and it will make a big difference in the amount of heat.
If you aren't getting much air flow, pull the blower fan and check for critter nests.
|