Author
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Topic: head question...
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90lxfoxbody
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Member # 6947
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posted
im doing a 11 to 1 347 with a healthy cam...580 lift 238 at 50 duration... Car has a 200 nozzle nitrous system.
My choices for heads are.
Victor juniors(my choice) afr 185 or 205s trick flow
The car is a 86 with a mass conversion and a tremec with 3.73 gears.... My goals are 550 or so whp on the bottle. What heads does everyone like dislike and if i didnt list the head you have had good luck with what would you recomend..
Thanks
-------------------- Owner Of All Out Performance Ya I own that Cobra Old setup whipple and jug 9.37 155 New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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90lxfoxbody
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Member # 6947
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posted
Wow thanks for all the input guys...lol
-------------------- Owner Of All Out Performance Ya I own that Cobra Old setup whipple and jug 9.37 155 New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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two-gun kid2
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Member # 5891
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posted
me personally,Trick Flow.
Posts: 5566 | From: Hayward,Ca | Registered: Jul 2005
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JohnB
Tech Moderator
Member # 969
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posted
AFR's. Why would you want anything other than a CNC head?
-------------------- 1965 Shelby Cobra 1993 Cobra 2012 F150 Raptor 2020 GT500
Posts: 6523 | From: Orlando FL/Redding CA | Registered: Mar 2002
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93PONY
Mr. Valve Events
Member # 60
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posted
2 of the 3 fastest N/A 347's on the site run ported VicJr heads w/EFI. The 3rd car runs the Competition AFR165's with a Carburator.
Personally I think the VicJr's are a little on the large side for an EFI (intake restricted) 347. 195-200cc's seems about right to me for under 6500rpm shiftpoints.
-------------------- www.advancedenginedevelopment.com SCT dealer Dynotuning
(916)715-7569
Posts: 4265 | From: Fair Oaks, CA | Registered: Nov 2000
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90lxfoxbody
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Member # 6947
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posted
I was thinking the bigger volume for the nitrous more then n/a....I plan on spinning it to 7000 or 7200 or so.The car is light,its in the 2800lbs range with me in it and its a stick.....
-------------------- Owner Of All Out Performance Ya I own that Cobra Old setup whipple and jug 9.37 155 New twins hoping for 8.50s at 165
Posts: 588 | From: fresno ca | Registered: Jul 2006
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