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Old 07-25-2013, 10:29 AM
carbide carbide is offline
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I have a 428CJ stroked to 462 with extensive head work and a .565 lift hydraulic roller. I'm running the Dove 2x4 tunnel wedge and a pair of the 4224 Holleys. On the dyno it was running lean until I changed the jets from 76 to 84 where it made 579.9 HP and 565 torque. After putting it in my Cobra I found it wouldn't run under 1800 RPM without stumbling which made it very unfriendly to drive on the street but at WOT it was great. In an effort to make it drivable and maybe get my gas mileage above 5, I have since gone back to 76 jets but haven't had a chance to really see if they make a difference in drivability. Hopefully now it won't burn my eyes as much if I crank it in my shop.
Before I stroked it changed the cam and bumped the compression to 11/1, I ran 2 of the 600 Holleys and it was very streetable. I may wind up going back to them.
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