Total Performance(F.R.P.P.) just got back to me via email yesterday. The first year for the roller cam in a EFI302 truck was indeed 1992.1994 was when the EFI351 first got a roller cam.What it was that I remembered about the 302 truck,and 1994,was that the roller cam got better specs(approx. 198 degrees intake/200 exhaust@.050" and .422"intake/.448 exhaust valve lift),and that is why the power went up."The roller cam profile remained the same as the flat tappet for the 5.0 Liter engine until 1994".The original specs he gave me for a 1990 EFI 302 cam are 185 intake/193 exhaust degrees @.050" and .379" intake/.395" exhaust valve lift using a 1.6 ratio rocker arm.My '90 Bronco's 302 cam isn't stock,and I'm not sure about exact specs on it,but they suggest a Mustang 5.0L cam 210 degrees intake/210 degrees exhaust duration @.050" and .444" intake/.444" exhaust valve lift.

 

How much HP do you guys estimate my 95 5.0 mass air has? Stock I estimate around 200 ish. But with the Superchip, K&N filter, Full 2 1/4" dual exhaust w/no cats and Flo-masters, unerdrive pulley, Tornado intake fans (2) and a throttle body spacer. I tend to get spark knock if I dont run 93 octane at least. I know the 95 had a different firing order than some. Im not sure on other aspects of the motor but she really screams!!!

 

The reason you're getting 'spark-knock' or pinging with your truck unless you run premium is because you're using a chip. I think that just about every off the counter chip is programmed with using premium grade fuels in mind.

 

I could be wrong, but I thought that the 4.9 and 5.0 got multipoint EFI for the first time in '87, and the 351 and 460 in '88. Before that I think they had throttle body injection, but I'm not really sure anymore, so if someone else knows otherwise, let me know.

 

 

1996 models got a 215hp rating and 300 ftlbs of torque! Am I wrong?

 

Wow, a 6 year-old thread

 

I was wondering why I was seeing a bunch of names I didn't recognize .

 

I think this deserves a thread miner reward!!