[mustang79]

Just in the proces of rebuilding my '79 Ghia 5.0 and now I got a nice set of hedman headers + double exhaust system I got offered a relatively cheap stock intake 4v + Holley 4V carb of a 85GT. I was wondering what the gain in performance would be vs. my stock 2150 2v carb + intake. (engine is still 100% stock). In a later stage I can always port the heads or go for an aftermarket set.

Would it by any means be interesting to swap only the carb + intake and keep stock cylinder head or ????

Any advise / experience in this resepct? Thanks in advance for letting me know.

Melvin

[Jarrett]

By all means do it. The gains from a 2 bbl to a 4 bbl swap will definitely be noticeable.
The parts will fit fine, and will hold you over nicely until you can do the aftermarket route.

[meangreen92]

Yup it'll go right on your '79. I ran that exact setup in my '82 GT, a '79 302 with an '85 GT intake - but I had an out of the box Holley 600 universal carb which is rather similar to the GT carb. I later put that setup on my '68 Cougar 302. That intake is sitting in my kitchen now...
You should get an '83 - '85 accelerator cable though. The four barrel ones are somehow different - in addition to having purpleish-pink paint on them whereas yours probably has a gold colored paint on it. For some reason, the two barrel cables wear out quicker when used with a four barrel, but will work.

[shrpshtr90]

i have a 85 5.0 mustang LX with a throttle body but i want to put a carb. on it but im worried that i will have to change the intake manifold. will i have to change it for a 2bl carb.?