Im, sure this is Simple - Pontiac GTO Forum
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post #1 of 7 (permalink) Old 09-15-2007, 06:58 PM Thread Starter
 
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Im, sure this is Simple

I will be driving normal posted speed, in my 69 and "sometimes I'll get on it'. ( Highway driving") And I bogg out A'litt. 3 speed standard. Im know LARS has an Idea on this. Idile is At bout 800rmp and Car never seems to act up or wana die. Is there anyone that can help. Car temp avg, is bout 190 hot is 210.
When I shut her down My temp goes to bout 230?
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post #2 of 7 (permalink) Old 09-15-2007, 08:35 PM
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Running too lean or retard timing could cause overheating and poor performance. Check your timing,

Randy


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post #3 of 7 (permalink) Old 09-16-2007, 09:07 PM
 
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it has a 3 spd standard trans?
sounds like a carb problem or possibly starving for fuel
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post #4 of 7 (permalink) Old 09-17-2007, 12:27 PM
 
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A bog in the transition going to wide open throttle (WOT) is usually incorrect setting of the secondary airvalve spring. Set the spring to a windup of 3/4 to 7/8 turn.
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post #5 of 7 (permalink) Old 09-17-2007, 08:42 PM
 
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Might want to check out the last couple of issues of Hemmings "Muscle Cars". They had two articles on how to rebuild the Rochester 4bbl carburetor. Lots of neat tricks in those two articles.
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post #6 of 7 (permalink) Old 09-19-2007, 02:11 AM Thread Starter
 
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Guys, thanks for the great advise. Im going to check all of the above. I changed the Octane I was using and that has already helped. The other thing I did is bought an K&N air filter. The car seems asome, once I had done those two things Im still looking into the timing and the Secondarly Air valve. Herb
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post #7 of 7 (permalink) Old 09-23-2007, 11:49 PM
 
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Look at the accelerator pump too.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO General Discussion

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