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Roy Belding
Roy Belding, ASE Certified Technician
Category: Pontiac
Satisfied Customers: 4962
Experience:  Master ASE since 1980
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389 tripower from calif now in colo mcuts out after

Customer Question

389 tripower from calif now in colo mcuts out after punching. do carbs need to be rejetted at higher altitudes
JA: What is the model/year of your Pontiac?
Customer: 1965 gto
JA: Are you fixing your GTO yourself? What have you tried so far?
Customer: just bought a week ago. motor totally rebuilt in calif
JA: How many miles are on the car? Is it an automatic or a manual transmission?
Customer: 1920 5speed tremec
JA: Anything else you want the mechanic to know before I connect you?
Customer: any one in Denver colo who can work on 389 trpower
Submitted: 3 months ago.
Category: Pontiac
Expert:  Roy Belding replied 3 months ago.

hello, my name is ***** ***** I will be glad to assist you. please allow me a couple of minutes to gather some basic info.

Roy

Expert:  Roy Belding replied 3 months ago.

ok, nice car. I had one back in the day. it was a 421 with trips. loved that car

anyway, yes, at 5000 feet above sea level, there is not much air. with the current jets, it is running too rich. the jets need to be changed to a lower number.

do you have any idea of what size jets you have??? I used 58 in mine

Roy

Expert:  Roy Belding replied 3 months ago.

do you still need help???

please dont forget to rate me as it is the only way I get paid for my efforts

Roy