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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Race > Questions on Butler performance BPI 315 cfm heads
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  #1  
Old 01-13-2014, 09:16 PM
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Half-Inch Stud Half-Inch Stud is offline
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technical reading & writing skills, a curse & a blessing. HIS


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Old 01-13-2014, 10:03 PM
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I run the Kauffman hi ports on my 461,minimal porting (348 cfm), unported victor. 1050 dom, 13to1 comp, small solid roller. 67 tempest ,3850lbs all steel and full interior, 9" slick and run 1040s through exhaust....I'm very pleased with the hiports

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Old 01-13-2014, 10:20 PM
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I run the Kauffman hi ports on my 461,minimal porting (348 cfm), unported victor. 1050 dom, 13to1 comp, small solid roller. 67 tempest ,3850lbs all steel and full interior, 9" slick and run 1040s through exhaust....I'm very pleased with the hiports
That is impressive.

What are the cam specs?

And what mph?

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Old 01-13-2014, 10:28 PM
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690 lift, [email protected] all isky valve train..still more in it only went 1.50 60 ft...I take it cruise nights more than track...mechanical fan and water pump never goes above 180-190...I drive it everywhere even Home Depot...lol. The hi ports have nice chamber runs best at 30-32 total timing

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Old 01-13-2014, 10:54 PM
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demonic68 demonic68 is offline
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690 lift, [email protected] all isky valve train..still more in it only went 1.50 60 ft...I take it cruise nights more than track...mechanical fan and water pump never goes above 180-190...I drive it everywhere even Home Depot...lol. The hi ports have nice chamber runs best at 30-32 total timing
On 13to1 wow I am thinking I didn't aim high enough lol. What kind of fuel are you running?

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Old 01-13-2014, 11:25 PM
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At track I only run vp110...on street I run cheaper turbo blue 110...I plan on switching to E85 this summer, cheaper, runs cooler and pick up tenth or so

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Old 01-14-2014, 12:01 AM
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At track I only run vp110...on street I run cheaper turbo blue 110...I plan on switching to E85 this summer, cheaper, runs cooler and pick up tenth or so
E85 is my plan too. I just need to pick up a good E85 carb.

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Old 01-13-2014, 10:28 PM
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Originally Posted by deputydog View Post
I run the Kauffman hi ports on my 461,minimal porting (348 cfm), unported victor. 1050 dom, 13to1 comp, small solid roller. 67 tempest ,3850lbs all steel and full interior, 9" slick and run 1040s through exhaust....I'm very pleased with the hiports
How does it do on like cruise nights if you take your car out?

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Old 01-13-2014, 10:24 PM
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technical reading & writing skills, a curse & a blessing. HIS


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It's all good we are all car guys and if I can't take a little crap I probably should go buy a Honda lol joking

yes back to topic

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Old 11-12-2014, 03:46 PM
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torqjunki torqjunki is offline
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Check out the first post. He is looking for 550 WHP.

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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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Old 11-12-2014, 03:49 PM
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Wow...I brought that post back! Maybe I should check the date!!

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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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