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Discussion Starter · #1 ·
Which cam for a 468 bbc . The car weighs 2900lbs with driver , has 990 gm heads (ported) victor jr intake , 4:11 gears , stalls at about 5600 , turbo 400, 13:1 comp on alcohol rons toilet, and has a current 60' of 1.45 . The car currently runs 10.25 @ 4000' @ 129.5 mph .

The cam I am currently running is a 50225 lun solid roller .722 in/.722ex and duration is 280 in/284 ex at .050 110 lobe sep .

I am hoping to get into the high 9s is it possible with a cam change or can anyone see a bottleneck with anything else . I know the heads are not the best but I am hoping to hold off till I buy a bigger mill .

thanks ,

Slim
 

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Discussion Starter · #9 ·
I launch the car at 5000 , shift at 6500 and go through the traps at 6000 . The crank is a crossdrilled gm forged and was told only run it to 7000 . i can get a set of 4.56 or should i look harder for a 4.88 . I have to buy a different cam as this one is toasted so any thoughts comp cams tech advised me to go to a 277/278 , 742/744 at 112 lsa special grind and wont have it in time for next race .

Thanks

mark
 

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Discussion Starter · #12 ·
My rods are Crower Billett Steel series . I just put new manley nextex springs in . I can not remember the size but I thought they were 280 lbs , 0.800" . So Horndog what size cam do you recommend , I will get a set of 4.88 gears and turn that engine harder . My other problem was airflow into the toilet . I was running a fiberglass frontend with no cutouts and no scoop . The throttle body was only 3/4 " from the hood . I have now installed a velocity stack to see if engine will breathe easier . I also am running crane gold rockers 1.7 and will be installing a set of crower lifters. That is what ruined my cam I piled up a lifter .

Thanks ,

slim
 
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