Thread: NHRA rules
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01-29-2008 09:34 PM #1
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NHRA rules
Hey gang. I'm getting ready to order some roll bar tubing for the 'maro...anybody have a new rule book handy to see what the spec for moly tubing 8 point roll bar for a 10.90 car is? Think it used to be 1 1/2" X .083 wall......???????
Thanks
Found the spec on a google search that sez 1 5/8 x .083, but I thought that had changed for moly??????Last edited by Dave Severson; 01-29-2008 at 09:41 PM.
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Welcome to CHR. I think that you need to hook up your vacuum advance. At part throttle when cruising you have less air and fuel in each cylinder, and the air-fuel mixture is not as densely packed...
MSD 8360 distributor vacuum advance