I am in the process of converting my 87 mustang from efi to carbureted and i was wondering if my horsepower was going to go up or down or stay the same? This is my first carb setup and i dont really know what to expect. Basically the the main change is i took off a GT40 intake and added a holley single plane intake and a demon 750 blow through carb. Does anyone know what i should expect?

 

I did that about 20 years ago with a 86 GT! Went with a victor Jr. Intake,holly 650, b303 cam, and I ported the stock heads! It really woke the car up!! I used a throttle cable from an 85 and used mallory for all the fuel system. Steve Petty from Lynch Mob racing set the carb up for me!

 

Ok thanks, i was curious. I never had my car on a dyno yet but comparing it to cars with similar work done it shouldve been around 600 hp, and i had some buddys askin me what it would be when i was done with the new setup and i really didnt know that answer! Lol