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Re: Mufflers VS Catalytic converters
Quote:
Originally Posted by Z10
I'm running a complete Magnaflow system on my 72 with cats. The engine is a ZZ4 with FIRST TPI. The stank is gone. The cats are very small and around $85 dollars each. My wife will now not only ride in the truck, but on occasion actually drives it.
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Cool! What's the carburetion on a ZZ4? Holley 3310? [Edit: Duh - I see it's TPI - ignore me]
Does your EFI employ an air-fuel sensor to monitor and adjust the mixture live?
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1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible
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