i have a 90 f150 4x4 with the 351W 5.8L, and i can't even spin my tires or the line when i punch it, whats somthing i could do thats simple easy afordable that will give me some more juice for my girl?

 

lol.. who cares.. you're not driving a honda civic with 5" exhaust and a fake turbo made outta aluminum foil duck taped onto the engine bro.. your driving a truck.. as long as it sounds mean is all that matters.

 

take the camper top off

 

There are tons of ways to get more power. Headers (long tube) mufflers, and if you run duals, make sure u run an H pipe. Cold Air Intake, have the heads prted, different cam, switch your gears (dosent add power, just add's to the "seat of the pants" feel) make sure there arent any exhaust leaks, and all the gaskets are sealed well. If there is any air escaping, your loosing power.

 

Deffinately. but the cold air intake you loose torque especially with a single tube application instead of the 2 tubes.

 

You have a cold air intake factory, If you install a "cold air intake" from K&N or similar brands, it will just be sucking hot air. A K&N drop in filter has proved to be better for performance than a new intake kit.

Taking the camper off would help. Do a complete tune-up, replace plugs and wires, replace the coil and ignition box, change all of your fluids.


You should be able to get them going nicely, I can spin mine really good with a 302 and 3.55 gears, thats with a hundred punds of gear in the back too. I have a bronco not a f-150 if that makes a difference

 

alright thanks for the tips yeah i took the camper off, and yeah i got that nice truck sound to it,but it got that sound by not having a gasket from manifod to down pipe and its better to get just a replacement K&N vs the cold air intake?

 

filter not really going to give you more power.. i mean. think about it... sure you might get 1 more hp IF THAT... I think all of the K&N stuff is so overrated. If you really want MORE power.. do full tune up first.. make sure everything is fixed up before you start modding your truck. Make sure your differential gear is up.. everything lubed... then think about mods.. the paper air filters are actually better for your car because they keep more dirt outta it. I wouldnt go too much into the "bolt on" stuff. and with exhaust, that is just going to make you use more gas because you are going to be on the gas more to hear that power rather than not.

 

My 84' with the 351w (carb) can spin 33" all terrains for a second or two no problem, and would at least give a good churp with 36's.
Only things really done that could count towards performance would be the edelbrock carb (k&n filter too). My si/do cherry bomb extreme actually took away a little of my off the line torque it feels, so I can't get them to spin as long as before I had that put on. When I had 31's on to pass inspection due to NJ's retarded lift laws, it would spin those things all day lol.

It's fun taking the ricers off the line. Usually can't hold it for too long with the C6, but for an old truck she does pretty good lol. They might be able to take us in a race, but we'll drag em' around a parking lot all day at least.

 

yeah most deff tune up and get the vaccums a good look over and what not. Make sure everythings in good working cond.good that you took off that camper top

 

What setup do you have?

The 1990 351 was rated at 210hp, 315lbft torque - certainly lacking by today's offerings.

Also, IIRC, the axle offerings that year were the 3.08 and the 3.55 - which is yours?

If my 5.0L 185hp, 270lbft torque, had the 3.08 gears - geez, would have to get a calendar out to clock the 0-60 speeds.

Remember, these were motors designed in the 60s, trying to comply with late 80s emission standards.

All that being said, ensure that everything is as up to snuff as can be. Then it's just a matter of how big your checkbook is toward the higher performance stuff.

 

what is the diff between 3.08 and the 3.55 gears? And Brake+gas at same time=loads of smoke

 

so when i do my tune up should i be looking to get some performance spark plug wires or just some replacement ones?

 

Suggest to get some good OEM-equivalent quality replacements.

Stay away from the discount chain store crap - DuraLast or whatever.

 

Not sure about the quantitative differences between 3.08 and 3.55 - just that the 3.08s are numerically about a 15% taller ratio - suggesting about 15% less off-the-line performance.