Hello there, I am kevin and own a 1961 ragtop Impala. Here are my specs....
ENGINE
-383 stroker 442hp/470ft lbs of torque )
-Chevy 350 bored 30 over and stroked to 383ci
-Scat crank 3.75 Stroke Cast 9000 series
-Scat 5.7 forged I beam rods with 7/16 arp cap screws
-Forged Flat top Probe Sportsman Race Series Pistons
-Comp Cams Roller Cam Duration-Intake 230deg Exhaust 236deg @ .050 / Lift Int .510 Exh .520 and 110 lobe separation
-Air Flow Research 195cc Heads 74cc chambers
-9.7:1 compression
-Headman Block Hugger Headers
-Holley Fuel Pump
-Speed Demon 750cfm Carb Vac secondaries
-Polished Air gap Intake
-Edelbrock aluminium water pump
-MSD Plug Wires
-All Bolts Are ARP
-Mini Starter
-Edelbrock double roller timing set
-Comp cams roller lifters
-Crane cams roller rockers
-Full Mandrel bent Flowmaster American Thunder exhaust With 50 series deltaflow mufflers
CHASSIS
-700r4 tranny
-3170 rpm Edge Racing 9" converter
-B+M super cooler tranny cooler
-9 inch ford rear end
-Center Section With Motive 3.89 Gears And Auburn Pro series limited slip
-Air lift easy street air ride kit
-4 wheel disc brakes
-18x7 in front and 20x8.5 rear Intro Twisted Vista Wheels
-Boxed trailing arms in rear by spirit engineering
And the dyno specs....
Intake center line 105 1/2
jets 76 front 85 rear
vac sec spring short yellow
timing 35 deg
RPM----HP---TQ---A/F--Vol Eff%
I have one question - and I'm no "tuner".... but those A/F numbers look pretty "lean" up in the RPM band... and leaner yet at peak torque...
Anyone??
I have been told the same on another forum and questioned my engine builder about it. I was told It had to do with how the dyno pull was performed If I recall correctly
Brian Hobaugh SCCA National Tour June 2014
First Hemi 'Cuda Convertible Ever Built
Short clips: Goodguys Pleasanton autocross and pit videos
New to the site with my 61 Impala ragtop...
Linear Mode
