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| | | | Joined: Sep 2007 Posts: 141 'Bolter | | 'Bolter Joined: Sep 2007 Posts: 141 | Hello,
I assume that there are different carburetors which will work on my stock GMC228 manifold.
Does anyone know what works?
Are the carbs for a 248 270 302 the same?
Thanks,
Chris | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | Zenith carbs, which is what came on GMCs, were made for a specific engine. A Zenith from a 248 or 270 might "work" on a 228 but you can't expect the kind of performance as from a 228 Zenith. Many people have thrown Rochesters on GMC engines. Again it will "work" but not like the original carb. | | | | | Joined: Dec 2000 Posts: 506 Shop Shark | | Shop Shark Joined: Dec 2000 Posts: 506 | I've put a carb from a 302 on a 228 with an adjustable main jet, its works but not well as others have said. "More carb don't add fuel they add air. Engine vac adds fuel, too much carb- not enough fuel." You try then to add more fuel with the main jet -.
A smaller carb is usually better in most situations.
"Drugs are money, money is power, power is security." - Kent Heiner
Nedrow population 2212
Carbon footprint family of 2/11 tonnes of CO2/yr
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