CRASH3400

You should clean the Mass Airflow Sensor (if you can find it), reduce slack in your throttle cable (makes driving more fun) and rip that **** ing Cat off! Great work and keep doin it brotha!

steve491

Most CIAs don't actually suck cold air. Your stock air box was the best bet for an old 6 cylinder 4.9. What you have now should work fine.
True cold air intakes suck air from the grill or fender well via a duct, not just a heat shield in the engine bay.
As far as mileage, tune it up, air pressure in the tires, and a clean air filer. You can only get so much from that 4.9.

dr_bowtie

Over at straightsix.com there is a member, thats here too, Lassiter I believe who's hit 26mpg and was aiming for 30....

f150cam

nice job, i did MSD ignition stuff and K&N air filter and noticed a 6 mpg increase on my 302 with the 3.55 gears. was driving around getting 13 MPG for a while after all that im seeing 19 just driving to work (highest was 21 mpg on a 750 mile road trip) i rarely go below 15 in town now unless there are alot of long lights or extremely hot out. im doing this to all my vehicles when i get the chance, i never thought the MSD stuff would help so much.

dr_bowtie

sure it does... hotter spark burns more fuel... more fuel means more power... more power means less peddle effort... less peddle means less fuel used... see how that circle works?

same deal for newer cars... they make more efficient heads to run more compression on pump gas... they make more power and that takes less peddle effort... less peddle means less fuel used... its all math really...

f150cam

i get how it works, i just figured MSD was an over talked pile of junk lol, there is alot of that out there these days, like the throttle body spacer.

unit505

Stock airbox had a cold air intake tube run from behind the grill. I've retained it in case I wan't to go back stock.

unit505

Can someone suggest an MSD Coil which will work well with my low mileage, fairly new distributor? I've heard a couple of horror stories about people burning holes in their pistons from running high output ignition parts. I see the MSD Streetfire coil is right around $35. I'd spend that for a little mpg increase. I'm guessing the coil, wires and plugs would be enough, or will the new distributor be mandatory.

Travis_CO

I was always told to just use a motorcraft cap and rotor. The high performance ones usually cost more than they are worth. So I've heard anyway.

I like to use stock/motorcraft stuff when doing a tune-up

Just call me Sean

iTrader: (1)

I get better mileage now that I removed the dead bodies.