[Steve C.]

A td bit for conversation.....

Years ago when UltraDyne was still in business Jim Butler used to order and recommend the following UltraDyne mechanical flat tappet cam for a Pontiac application.
At the time Jim stated 1.2 BHP/CID with 9.5 compression. 540 HP in a 455.

Further in the UltraDyne catalog at the time that specific mechanical FTC cam was listed as "Popular street/strip cam, 455 with 2800 ss converter"

276 / 284 at .020"
241 / 251 at .050"
.518" / .530" lift w/1.5 rocker ratio
Ground with a 110 lobe separation.

Those lobes are listed here on the Bullet Racing Cams web site:
https://www.bulletcams.com/Masters/Flobes.htm

If you were interested in something like that cam Tim at Bullet could make it.
Or depending on the heads in use he could alter the amount of additional exhaust duration.
In addition if you did not want a 112 lobe separation he could also alter that.

( Information provided in this post does not represent any endorsement. And unless specified it is not based on personal experience and is offered for general interest only )


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