93 EFI build

Hi all,

I've got a 93 F250 daily driver. 75K miles, runs OK. In my parts bin, I've got a Comp X4262 cam and lifters (0.514/0.524, 218°/226°, 111°), and some 2" fenderwell headers/ 3" Flowmaster exhaust.

Will the EFI and computer be OK with a cam like this? Should I ditch the EFI and heads? Sure do like the driveability of it compared to my old carb. I know it's a long shot, but will the added power net any sort of mileage improvement? I'm getting 11 mpg right now (3.55 gears and 33" tires), but I plan to swap in 4.10's to match the front Dana 60. Mileage is a concern, but not enough to sacrifice power and towing.

My last build resulted in disaster when breaking in the old cam (same as above ) in my 429. Comp warranted the cam and lifters, but now I'm a bit timid about sliding a new cam into my good running stock 460.

Any thoughts?

Thanks,
Pete

As Dave stated above, that 111 lobe centers look a bit tight.

Did you notice all of the installation notes ? (cicled in red)

83-88T-Bird Guy wrote:As Dave stated above, that 111 lobe centers look a bit tight.

Did you notice all of the installation notes ? (cicled in red)

Yeah thats not just a install and drive it type thing.

Not sure if there is an image of the red installation notes (I'll have to try to open this post at home). I posted my 429 saga a few months ago, and I think everyone was satisfied on how I put the engine together. THAT engine was considerably more a "weekend" engine than I intend the new one to be. So I would have considered that cam to be a bit much for this engine. But since it's what I have laying around, I thought I'd ask some opinions.

Sounds like the exhaust I have might be good to go, but the cam is too snotty for the EFI/computer to agree with.

Thanks!
Pete