Fordman: Would you know if a '85 or a '86 is either carbed, or efi'd from the factory? I know 87's were, but several people have told me that there's were carbed.

 

If I remember correctly, there were both available during that time frame.

 

My bad then Ford man - just was an intial thought off the top of my head.

 

Engines from that era wouldn't have the restrictions imposed by emmissions standards of the later models, most likely accounting for the performance difference. Just a thought...

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1997 F150 XLT, Flareside Bed, Moonlight Blue, 4x2, SC, Auto, 4.6L, 3:08, Matched cargo cover, Blue Oval reciever hitch plug, 235/70/16 Firestone Wilderness AT's, Sliding rear window, and a bunch of sand tubes (it is winter, ya know...)

 

That would be incorrect. From '68 on they had smog pumps and EGR valves. That's a fact, had one, know for sure.

 

The older 300 c.i.d. are very restrictive. I have a 86, that one barrel is a little more than an inch in diameter. It also has two cats.
Just wondering, Ford man, if you knew the torque on the 86 300 c.i.d.

 

They had 200hp 4.3's in 1992, you could get them in the Sonoma GT, also that same 195-200hp motor was available in the jimmy's and s10 blazers.

 

With a little tlc and some speed parts the 300 really comes to life. With my exhaust and K&N i noticed a serious jump in power. One of my friends has an early 300 w/dual outlet header, cold air intake, K&N, MSD 6a ignition and a 4 barrel intake manifold w/a holly 390cfm carb. He said it peaks at 260hp and over300lbs of torque.

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1987 F-150 300 L6 4sp 2wd
K&N, flowmasters