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Warwick;
I have almost the identical combo in my 65 Fastback......Here is my specs; 351-W,bored .040,flat top piston,.484 lift hydraulic cam,performer RPM manifold,Holley 600 DP,Tremec 5 sp,9" rear with 3.00 gears,69 model iron heads (polished/ported,1.90/1.60 valves).........love it,been in the car for 21,000 miles now with no problems,idles at 800rpms all day,runs 180 degrees of water temp all day in traffic,runs high 12.90s on street tires in street trim in the quarter mile and gets 22 mpg going and coming from the track..........Not sure what trans you are running,that will determine your rear gear..........5th gear at 2000 rpms is 75 mph with 25' tall tires for me.........
Your combo sounds fine for a street car,should have around 350 hp,very streetable with good idle quality and you should get many miles of service out of this engine....The GT40 heads are perfect for a street car and I would go with the performer RPM,this combo is good for 6000 rpms...
Ford did make the 351-W crate motor with 350 hp and used the exact combo.GT40 heads and 484 cam with the performer RPM manifold,they have discontinued it some time ago in favor of the 385hp crate motor with aluminum heads....
You will not be disappointed in this motor.........
David
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DAVID GAGNARD
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