Thread: HIF6 vs HS6
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Old 11-22-2020, 10:00 PM   #12
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spock345's Avatar
Join Date: Nov 2016
Location: Santa Cruz, CA

Well I have been looking at the specs. A 100HP B18D, which is what I've got should have either SM or KG needles.

I found a site that rather nicely plots the taper of each needle.

Comparing the BBB, KG, and SM needles shows the SM and BBB to be pretty close with the BBB slightly richer. The KG is quite a bit leaner than either the BBB or SM. I bet I could get away with it given I am running a better exhaust. Maybe.

At this point I would like to run the HS6 carbs but I am trying to figure out if it is feasible to run the HIF6s until I can sort out the throttle shafts.
1967 122s, carbed B20F, M41, the sports tractor
1998 S70, grandma-mobile
1989 240 B230F, V15 cam, chipped EZK, M47 swap (Lost a fight with a Chevy express van), the millenial falcon
2012 VW Tiguan (screw plastic water pumps), daily
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