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Old 03-08-2010, 06:25 PM
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DAVID GAGNARD DAVID GAGNARD is offline
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Location: MARKSVILLE,LA.,,
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Mine is a custom made piece made for a dyno shop to test, it added 16hp and about the same on the torque side on my 331 stroker.........

It's a little different from the ones you posted about as it was an expiremental piece. It is probably close to 10 years old now.... The only difference I see is the taper, mine doesn't taper out as quickly and turn to an open spacer.. the "bells" have a more gradual taper to them......but it works.......dyno tested on my motor.......

Edit: I looked over the info on the 2 sites you posted and 40 to 47hp "may" be possible, but I'd have to see that to believe it....

I helped out in a 2 day dyno test of a 600+hp dirt late model engine. One day was dedicated to testing 2 very different carbs and a total of 6 spacers, one each in wood and one each in aluminum. They were an open spacer,four hole spacer and the "bell/tapered" spacer. The results we saw were that no spacer made more than 23hp over no spacer at all. One carb actually did better with the 4 hole spacer than the tapered spacer!!!!!!!!!!!!!

David
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Last edited by DAVID GAGNARD; 03-08-2010 at 06:40 PM..
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