Sorry to post and run had some stuff come up. Anyways, 32ft Travco, 32" tall tire, 4.56 gear, 518 trans, 440 with KB184 pistons, 452 heads set up properly for .040 quench, cast iron manifolds, and a thermoquad for starters.
RPM calculator in overdrive shows 60mph at 2000 rpm, 70 at 2300. With 400 plus ft lbs of torque from 2000 to 4000 I don't know why I would ever spin it higher than 4k.
Idea behind the intake is if it will increase fuel mileage from 7.5 to 8mpg that equates to about a 6.6% savings in gas. Hoping I can do even better than .5 mile per gallon improvement with the step pistons and quench.
Wow mGo ! ... is this combo all done ? ... or jsta planned ?
Your 8 mpg goal ? ... you should be able to get that with a pig fat Berri crab !!
What will your driving habits be ? Keeping up with traffic or a easy cruise in the far right lane with the cruise control clicked at 60 or so mph ?
