Tunnel Ram and 660 Holleys

General engine tech -- Drag Racing to Circle Track

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af2
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Re: Tunnel Ram and 660 Holleys

Post by af2 »

joespanova wrote:
af2 wrote:
Look at the float pivot then re-think what you wrote.

Joe is correct as was Jenkins.
BS
I've run the 660s with the pivot forward for YEARS and never had one single fuel starvation issue. By the same token the 4150 / 4500 side hung float bowls should be subject to the same conditions you are suggesting. Yet they seem to work.
I never said starvation......Saying BS is saying you never tried it? Side hung bowls are another topic.
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Adam
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Re: Tunnel Ram and 660 Holleys

Post by Tuner »

“Side hung” is the common term describing the bowls on 660's. “Side-pivot”, as comparison to “Center-Pivot”.
wyrmrider
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Re: Tunnel Ram and 660 Holleys

Post by wyrmrider »

I'm with joe
run it, get it dialed in
then retard it and see if that helps, if so go biggger
I would also go to the higher ratio rockers NOW
it DOES give you more duration at 200 where you need it, just does not change the seat timing
When you get a new cam think about an inverse radius roller- for the same reason
If you go to more seat duration you may need more compression
joespanova
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Re: Tunnel Ram and 660 Holleys

Post by joespanova »


I never said starvation......Saying BS is saying you never tried it? Side hung bowls are another topic.
No I haven't........linkage simplicity drove my mounting them "backwards" as some think. I've never had a bog , lean condition or any other symptom that would have me chasing the way they are mounted.
See for yourself.

https://www.youtube.com/watch?v=ZmojLlr152s
The car runs 9.40s- 9.50s @ 140
modified wanna be
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