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How much power will a 351w block take if it has a valley and main girdle
 

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I've always heard 650-700 rwhp on the 351 blocks.

I'm running an 84 block with a girdle and probably in the 600ish range fwhp and 450-475 rwhp through the C4.

Car weighs 3000 lbs and runs 6.50s in the 1/8 and 10.30s-10.40s 1/4 mile in 90-95 degree heat on motor.
11.3:1 427.

I plan to hit it with a 100-200 shot at most eventually and go for 9s. Gotta get the suspension working perfect on motor first though and get a few safety items and a license LOL.
 
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