switzerlad
Registered Member
I have a '78 K5 with stock carb. At altitude, this beast loses all power and limps (5 mph) and loses all power. Does anybody have a suggestion for a replacement carb? Has anybody tried the Edelbrock off road caarb?
CK5
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Replacement Carb?
- Thread starter switzerlad
- Start date
No carb will ever run good at sea level AND at altitude. Rejetting at the least and float levels may need to be adjusted at different altitudes.
Swap to TBI via a junkyard conversion or some place like Affordable Fuel Injection and live happily ever after. Although there will still be a power loss at altitude, it should be significantly less than with a carb. No engine will run the same at low and high altitudes, there is simply less air up there. The overall health of the engine will play a part in all of this too.
Swap to TBI via a junkyard conversion or some place like Affordable Fuel Injection and live happily ever after. Although there will still be a power loss at altitude, it should be significantly less than with a carb. No engine will run the same at low and high altitudes, there is simply less air up there. The overall health of the engine will play a part in all of this too.
also make sure your ignition system is sound before delving into fuel issues....80% of fuel issues are ignition related!
carbs can work good, but may need jetting changes every 4000' feet of change. What kind of elevation are you taking it up to?
carbs can work good, but may need jetting changes every 4000' feet of change. What kind of elevation are you taking it up to?
switzerlad
Registered Member
When I say losing power, I mean it is absolutely gutless. Returning to So Cal from Denver pulling a utility trailer, I maxed at 5mph approaching Eisenghower Tunnel. EFI is a year or two down the road due to cost.
My TBI Blazer was struggling at Eisenhower Tunnel, but like 45, not 5.
Martin
Martin
Maybe if it still has a catalitic converter its plugging up?...exhaust restriction perhaps..altitude does kill power,but it still should be able to go more than 5 mph...there could be other issues..a friend had a TH350 with a torque converter that had the stator lock up and it acted like it took off in third gear,and was a slug till it got up to 35-40 or so...
