Originally Posted by bluebeastsrt

Originally Posted by dawson1112

Lmao that's one hell of a calculated guess... all the way down to ten one thousandths hp .. Do mine ,, its a mustang , has some simple mods , and its blue..

Originally Posted by Duncan_GT

Flames and a spoiler are good for a tenth in the quarter

Originally Posted by The Wacos Kid

Hello all!

I am new to the mustang world and just bought a 1990 fox body 5.0. Listed below are the mods that have been made. Currently it has 2.73 gears so I am hoping to get 4.10s. It is a manual and needs a dyno tune because I timed it by ear myself.

302 that is punched .30 over with all new internal and some external parts. New parts include: Cast iron gt40 heads, Ford Racing (Pistons, E303 cam, lifters, push rods, 32 pound fuel injectors, valve covers), Scorpion 1.72 rocker arms, Summit Racing (Gear drive, high flow oil pump, lower intake, EGR valve, 75mm throttle body, 1 in. intake manifold spacer, high flow fuel pump), Trick Flow RS (Race Series) 75mm upper intake, BBK (Mass air sensor matched to 75mm throttle body, shorty headers, off road H-Pipe with 40 series Flowmaster single chamber mufflers turned down at center of car).

Driving the car, it honestly seems like a turd. But with all that it should have some more juice to it...

Thank you for the help!

Originally Posted by dawson1112

The injectors are not to big , ecm will look at 02s maf and air temps if its to rich it will shorten pulse width . So instead of being at say .. 80 percent duty cycle the injectors will run at maybe 60 pecent duty cycle . With that set up I wouldn't expect them to be running much over 50 or 60% which leave about 25 to 35 % duty to play with later on if you decide to start adding more power to it. Don't waste your money on that 108 octane stuff they sell at autozone , instead take that 5 bucks to subway and get a sandwich it will give you more energy that the 108 will give your car. Your car feels like a turd because someone went to the trouble of doing the work to the motor first instead of upping the gear ratio first. Gear it time it drive it.... and if you can get some longtubes on those heads , The car will wake up with a shot of adrenalin like you wouldn't believe.