mjr46

oh I'm sure you can pick up a set of gt-40's for aroun 300 to 400 not sure though I never tried to buy a set but have seen them sold for around that...as for the NOS kit if it's a plate system !!!! put that puppy on!!!! I have a 100 shot on my 85gt and it punches the car down almost a full second lower in the 1/4 mile.... I'd purchase a set of jets so you can adjust your kit to start at 100 hp...they sell jet packs!!!

86Capri2GT

yes it is indeed a plate kit now would it be safe to hit it with the 175 shot or u suggest jettin it down the kit was a compucar kit but i have a nos bottle.. the guy i bought it off of says that the kit is just one setting it cant be adjusted so i dunno it has the full throttle switch and everything also bout the gt40s are there any other requirements besides headers and also where can i get the right headers for them

mjr46

well to spray a 175 shot you'd probably have to go 1 to 2 steps colder on the plugs and set the timing back 4 to 6 degrees and I'd run race gas to further avoid detonation...any set of performance 5.0 headers will work for a 5.0 mustang that is unless you purchase gt-40 p heads which are different then gt-40's the P heads require a special header.....try summit for header options

Sacmo

What rpm's are you launching at??? It's a different world when you got some tires that will stick... Sounds like you have a good set up, may need to step it up to run those tires...

86Capri2GT

i really havent launched the car hard yet because i dont have sfc's but i launched at 2600 and it pulled decently i know i def could launch harder then that but i dont wanna take a chance twisting n e thing

nitrous_bob

if it hooks it's the axles you need to worry about.

might have missed it, but are you still 7 1/2" er ? even more prone to breakage if yes.

squirt 75-100 on it, you'll see 12's all day long, if it's 7.5" think about an 8.8" swap

do the nitrous then save for heads, and yeah gt40 irons are great heads for cheap....do some port work though, my buddy went 11's on them w/ 4.10's 125 shot on a '92 gt

86Capri2GT

rite but when i said it was a full swap i ment everything 8.8 rear axles brakes, drivetrain, suspension the whole deal

r.barn

GT-40P heads off an Explorer ....... $300
Ford E or F cam ........................... $150
150 shot

Will not break thr bank and the heads and cam alone should add an easy 60+rwhp

86Capri2GT

so basically i can use the e-f cam witht he gt40 heads without upgrading the heads? and would it be safe to run a 150 shot?

r.barn

The E cam for sure will be fine the stock P head springs.
The F cam might be pushing it a little.

150 shot is plenty safe on that motor as long as you either run race gas
or pulling timing out for it.