boykoman...Very impressive!! Another lesson for the BIG NUMBER lovers. It should be no secret that our Pontiacs make much less HP than most of the turds we drag down the track. Same applies for big CFM numbers. I don't buy into the number crunchers who attempt to apply a mathematical equation using the max CFM of my cylinder heads to project performance levels. On a traditional Pontiac engine, more important factors apply.
#62 d-ports 270cfm @.500
10.25 @ 129 no NOS
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1971 Base Firebird..505ci IA 2A Round port E-heads by Butler 348 cfm.. Comp street SR 266/ [email protected] Victor intake/Quick Fuel Q950. 1 7/8" Dougs headers..3" mandrel bent exhaust with Hooker Max Flow mufflers, T-350 well built with 10" 4000 stall nitrous Continental converter..3.73 posi . Caltracs and 10" slicks. Belt driven water pump, alternator, Pwr steering and brakes,Flex fan. 11:1compression, straight 93 octane pump fuel. 10.35 @ 129.88 with 1.45 60ft N/A at 3700lbs race weight.
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