The key to power in these 428's is the intake with the cam and carb with
headers. Don't fall for Edelbrock intakes except the Streetmaster or Victor intake for 390-427-428. Ask Dove heads they'll tell you the same thing. I have a 412FE a 4.16x3.79 a destroked 428cj with 390 crank and rods. Very similiar set-up.
Holley 4150 650 with Percy Adjust a jet on primaries and secondaries.
Lunati Bracket master II 300/300adv. duration 224/224@50 514/514lift with 1.73's and my lift with 1.76's 523/523 with recommended springs,with dynomax headers with Edelbrock Peformer made 360HP with 428CJ edelbrock heads and torque was 370. Switch to the Performer RPM 370HP 379torque.
With port-o-sonic offy 385HP 386torque flat from 1900rpm's.Edelbrock Streetmaster 380HP 390 torque flat from 2050RPm's. Holley Strip Dominator-torque beast, 376HP 390 torque from 1600rpms flat to 5100. Dove High rise 396HP 376torque flat from 2300rpm's. Edelbrock Victor 398HP 380 Torque. Offy Super Sonic 406HP 381 Torque from 2200rpms. Dove Super High rise 410HP 385torque from 2400rpm's. These intakes are all as cast with no porting to any of them and depending on this set-up with intakes shown with stage 5 port job includes gasket match, plenum port,mild fuel carving distribution,walls smoothed,roof smoothed,floor smoothed. Will see 12HP-30HP 7-20 torque. And with no carb spacer and can ad a little bit as well 5-10HP 3-7 Torque. This is why circle track racers love these FE engines because they have big torque forever and make power down low as well and don't have to wind the crap out of to get to stick and go. I've proven the edelbrock ad in they're catalog BS and gave the dyno sheets to edelbrock in torrance myself and were not very pleased to be exposed, to have a over rated product to be almost beaten by a smaller camshaft with no porting or carb spacer any of these other factors would shatter edelbrocks claims. Edelbrock has good products for the FE fords in the past the victor and streetmasters and heads they're new performer,performer rpm intakes suck, like they're toker II intakes for sb chevy, however, they new dual quad intake does work once you get the grinder out and take care of the dual plane in the plenum it works much better. Pending on what application you'd like to be in a car or truck you don't have to worry about low end torque because the power range was all with any of the intakes was for HP 2100-5100rpm's very similiar to your 428cj and the torque lasts forever at low end to high end. I have Dove Super high rise combo in my 70 F100 towing a boat up 5% grade at 85 mph in the orginal 3 speed tranny and sounds like bracket car at idle and full intimidation at rev and best of all a secret to single plane intakes is you get great gas milage I get 20-22 MPG in the truck doing 80mph and 19 mpg doing 75 with the boat up the grade, why from the better air fuel ratio. With this combination in my truck 2001 Zo6 vette, 2003 GTO,69 Mustang 351w 450HP,70 Chevelle have all fell to this combo out of the gate and high endand still pulls hard past 140mph and had a confirmed speed of 165mph max all on pump gas 87 octane and 9:1 compression, it all came from years of experimentation with various setups and friends letting me barrow their intakes I can't find,get or are too expensive. if your budget is tighter get the Holley Strip Dominator, Streetmaster edelbrock or if your lucky an Offy Super sonic or port o sonic. Got cash get a dove. Another secret is the Volumetric Efficentcy formula look it up and will discover you don't a huge carb to go fast you don't want to starve or flood out. Best of Luck
Change that POS Edelbrock intake.
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