"When Indy Cylinder Head builds a crate motor of LESS than 625HP they ONLY USE AN INDY DUAL PLANE INTAKE MANIFOLD. When they build motors of 700HP and more then they use a single plane intake manifold. Andy Finkbaum in his book " Building Big Block Wedge Motors" he recommeds a dual plane intake on anything less than 650HP and a single plane intake only on motors of OVER 650HP.
For what it is worth....My motor for sure produces less than 650HP and its currently has a Mopar M-1 Single Plane intake and 950cfm 4150 Race Holley.
I have sitting on my workbench, right now, a brand new Indy Dual Plane Intake and a brand new Mighty Demon 850 Carb that is going to replace the single plane and 950..I am going to Test and Tune on Feb 20,21,22 2015 at Famoso Drag Strip to try out the new setup and I will have a full report if the dual plane and smaller carb make the car go faster."
This thread is GREAT! Can't wait to hear how the intake evaluation works out. I now have a '66 Satellite that has 500" that ran fine on the street & track with Torker 440/850 DP, Comp XS274(236/
[email protected]/511), Performer RPM heads, 3850# w/me, 4.10, BFG 325/50, 10" Turbo Action. Dyno says 500 HP. Ran 11.85 @ 111.5. No pull above 5000 rpm (very disappointing). The engine builder told me the original owner wanted to get stoplight to stoplight quick. For the new year I switched to an antique Cam Dynamics .565/.585-300/308 & Victor intake hoping to make power up to 6500 rpm.
I ran 10.80's in the early 1980's with 440+.030, 11.5 DC pistons. stock shot peened rods, iron heads(ported by me), General Kinetics mushroom cam (276/
[email protected]/645), TM7 Tarantula intake, 850 DP, 3800 Turbo Action, 4.56, 11.5W x 29.5, 3550# w/me.