Need some Emissions help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

walker · 07-08-2005, 12:39 AM

Well it is time for emission test again on my '67 C-10. Last year when I went through I was right on the allowable for hydrocarbons and just under for CO. It was a little too close for comfort for me to go back again this year without trying to improve it a bit. So If you all can help me out with some suggestions I would appreciate it.
I have a '67 C-10 with a 350/400 combo. It has HEI, Performer intake with a 1406 edelbrock, no EGR, running at about 10* initial with 32* total timing. Idle is at about 700 in gear. The engine was a GM crate motor with about 6,000 miles on it, about 3,500 since last years emissions test. I just changed the oil, am running mobil one, and have a new air filter in it.
Thanks again, Andy

07-08-2005, 12:39 AM	#1
walker Registered User Join Date: Jul 2003 Location: north of Phx AZ about 30 miles Posts: 698	Need some Emissions help Well it is time for emission test again on my '67 C-10. Last year when I went through I was right on the allowable for hydrocarbons and just under for CO. It was a little too close for comfort for me to go back again this year without trying to improve it a bit. So If you all can help me out with some suggestions I would appreciate it. I have a '67 C-10 with a 350/400 combo. It has HEI, Performer intake with a 1406 edelbrock, no EGR, running at about 10* initial with 32* total timing. Idle is at about 700 in gear. The engine was a GM crate motor with about 6,000 miles on it, about 3,500 since last years emissions test. I just changed the oil, am running mobil one, and have a new air filter in it. Thanks again, Andy __________________ Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold



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