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**Chevy Fleetside** · 01-11-2012, 07:36 PM

And there is nothing wrong with having the smog pump on..All it really did was pump fresh air into the exaust to help burn the unburned gas that went though.

01-11-2012, 07:36 PM	#5
Chevy Fleetside Registered User Join Date: Sep 2006 Location: San Francisco Posts: 4,787	Re: 66 got engine swap And there is nothing wrong with having the smog pump on..All it really did was pump fresh air into the exaust to help burn the unburned gas that went though. __________________ "A man and his truck, what a beautiful thing" 65 Short Fleetside BBC 65 Long Fleetside 283 3 on the tree for now. my build thread http://www.67-72chevytrucks.com/vboa...d.php?t=259536