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Horsepower figures for a 331
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[QUOTE]Originally posted by AaronC: [QB] Actually I just had a new 306 built. Compression is right at 10:1. My 165's (bought used from Mike) did receive 2.02 valves and a slight bowl blend (didn't help much on the flowbench). The heads had excellent low lift #'s and had 247 CFM at .500 and 250 something at .600. The intake valves alone were worth nearly 15 CFM across the board. I can post my before and after results if you're interested. Brian at Hi Tech recommended I go with the bigger valves since piston to valve clearance wouldn't be an issue. His power quote was 340+ RWHP and 350 RWTQ when dialed in. Also at least 113 traps at 3450 lbs. From what I've felt from it so far, I'm positive it'll be right where he said when it's all tuned in. I gotta call Byron and see when he can get to it. For sure the LS1 guys have made EVERYONE step their game up. I just want to see other 5.0 guys represent us well and not stick a Mickey Mouse combo together. Technology has come a long way on both sides. I just like to be the under dog in their eyes (LS1's) and when I pop the hood and they see "all motor" and a "306" and rub it in. I hope other guys on here will see what's working and follow to show some of these LS1's what's up. Later on I'll rig up the bottle again. [/QB][/QUOTE]
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