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Discussion Starter #1
Can anyone tell me what size cam to use to get the best performance out of my motor?

454 30 over
Kieth Black flat top pistons with valve relief
Alliminum heads 115 cc 2.25/1.88 valves 650 max lift
430 gears 31" tire
850 Holly Dp pushing more like 900 cfm
Car is 3200 lbs. with driver

This will be a drag strip only application , I know it's not a radical motor but I have to work with what I've got for now.

Thanks
 

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about 14 yrs ago,i have had good success with a comp solid .629 /.605 on 108 solid lifter mecanical .IIRC the duration is 260/266 @.050...but your CR is kinda low and you made no mention of your converter....

11-605-5 ???? iirc check the comp catalog
 

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A flat top piston and a 115 chamber will net in the low 8-1 compression. Regardless of the rest of the combination, it will be too easy to overcam this, even with a small camshaft and performance will be way down. I am all for useing what you got, but to a point. If you have to keep it, I would just go with a basic cam, with very low compression. 226/232 duration at .50". 110 lsa run in at 106. Lift will be in the .500's. Run an Air Gap intake. I would also mill the heads down as much as possible, closer to 100cc's to get compression up.
 
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