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Ty Webb · 07-11-2007, 10:23 AM

I need some help determining the differences in carbs.
What is different in these carbs?
1375x2250/1093xAV
1375x2250/1218xAV

I know the first two numbers are the primary and secondary bore sizes. What about the last numbers? These (1218) seem to be used more on big block cars.

Thanks,
Ty

07-11-2007, 10:23 AM	#1
Ty Webb Junior Member Join Date: Sep 2003 Location: WV Posts: 41 Likes: 0 Liked 1 Time in 1 Post	Quadrajet Carb Sizes I need some help determining the differences in carbs. What is different in these carbs? 1375x2250/1093xAV 1375x2250/1218xAV I know the first two numbers are the primary and secondary bore sizes. What about the last numbers? These (1218) seem to be used more on big block cars. Thanks, Ty