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This one looks better IMO
http://www.summitracing.com/parts/CCA-23-706-9/

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I think the other one is to small. If your going to the expense of a roller for a race engine id want at least 260@ 050.

265* rollers @ .050 can support over 700+ HP, this cam should be plenty for you Ted. I like it!

Pick a piston of around min of 11.5 or so. More would work even better. But if you had to run pump gas that cam should still rock at 10.7 or so. mike

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I think the other one is to small. If your going to the expense of a roller for a race engine id want at least 260@ 050.

265* rollers @ .050 can support over 700+ HP, this cam should be plenty for you Ted. I like it!

Pick a piston of around min of 11.5 or so. More would work even better. But if you had to run pump gas that cam should still rock at 10.7 or so. mike

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Couldnt have said it better...
That cam's lift will clear about any modern piston valve reliefs Ted.
The problem I see with flat tops and stock stroke engines is getting good compression. With 80cc chambers with Zero deck pistons and minimal valve reliefs your going to struggle to get the compression up over 11:1.
This is a pretty much a race car only isnt it Ted?
Ross makes some shelf Domes, and IIRC so does Keith Black in the forged line...
A Dome piston could be worth as much as 50hp in that type of engine with a roller cam...

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Bob goin from 11 to 1 to 13.5 could be worth that nuch

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