350 has no power
I have a 1974 chevy c20 with a 350. The
truck starts great, revs great, even goes
down the road great with no miss. Problem
is its got no power, even going up a
moderate hill you have to floor it and still
loose speed. Its got new plugs, new plug
wires, a new hei distributor. What can cause
the lack of power?
Lack of power may be low compression on engine,do a compression check on it,all so check the timing.
If it's running hot and the transmission (automatic) is shifting late as well it's a worn timing chain. HTH. -Jim
It dont run hot at all and shifts good. Could it be my carb?
Check the ignition timing and run a compression test as TST said. If the ignition timing is retarded (late) that'll cause a loss of power. Poor compression will too. Is this a higher mileage vehicle? HTH. -Jim
Its got 150,000 on it. Dont believe the motor has ever been broke into.
Ok, it is possible that the timing chain needs to be done. Back in those days GM was using a plastic camshaft sprocket which tended to fail. I had to do the one on my '70 Catalina at 168,000 miles. But do the other tests first. HTH. - Jim
You're welcome. Glad to help. -Jim
Looking for a Used C/K 20 in your area?
CarGurus has 26 nationwide C/K 20 listings and the tools to find you a great deal.
Search Chevrolet C/K 20 Questions
Chevrolet C/K 20 Experts
Related Models For Sale