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  1. 8-year project build -- Backfiring through intake, not idling.

    5.0L Tech
    Hi there. I have a 1988 Ford Mustang LX fox that has a 5.0 converted from speed density to mass air. This has been a long project for my dad and I, and recently we initially got it started for the very first time at zero degrees timing. It idled pretty well without stumbling around 1k, but...
  2. Cams and intake

    2005-2010 Mustang GT Tech
    Hey y'all, rookie here So i'm thinking about having a set of Mutha Thumpr installed on my '10GT. I know usually it's installed with a high flow intake manifold and bigger throttle body but will it still work with just stock manifold? I know I won't get as much performance gain as the high flow...
  3. 1999 3.8 split port Heads/intake on a 1998 3.8

    V6 Tech
    Hello. I am looking to replace the heads and intake on a 1998 3.8 and I know the 99 3.8 Had a larger throttle body, the split port intake and better flowing cylinder heads. Aside from cabling and sensors, are there any major issues as far as bolt pattern, water passages, pushrod length/lift that...
  4. 2bbl to 4bbl

    Classic Tech
    Ok guys, I have a 1968 Mustang with a freshly rebuilt 289. Problem is, it has a 2bbl carb and produces crappy power. I want to upgrade to a 4bbl carb. My questions are 1. Do i need to replace valves?...2. Suggestions on carb size and manufacturer? 3. Intake preferences? 4. Since I am already...
  5. Two questions: What is this tube called, and can I extend it

    2005-2010 Mustang Talk
    I am installing a new CAI (off brand, which explains why I need to modify my tubing), and I need to lengthen this tube in the picture. (Stock picture, not mine) The tubing is stretched to its limit to even fit in the hole made for it, which is further up the CAI tube then the stock one. Since...
  6. '86 GT Intake

    5.0L Tech
    I recently purchased an '86 GT. I was curious to know if adding an intake would be recommended. I've heard differing opinions from friends. What would your take be?
  7. Follow along with my H/C/I install in my 95 GT

    5.0L Tech
    Hey all, Timing chain seems to have gone bad, so I decided to go ahead and install the H/C/I I've had for many years. Combo: Typhoon intake (will gasket-match ports) GT40p heads (upgrading to valve springs to Alex's Parts PN VSK7k49) XE270hr cam 1.7 Crane rockers Pacesetter LT Headers...
  8. '68 Mustang simple carb question.

    Classic Talk
    So I have a '68 with a '72 302 in it. I've already got it bored out and all that good stuff. It has a 2bbl on it but I want to put a 4 on it. I'm not one for using junk, but in a yard nearby there are actually a lot of older motors in really good shape. People there have common sense and...
  9. What do I need to do to make 2015 GT sound as good as 2009?

    2015+ 5.0 Mustang Talk
    I have a 2009 Mustang GT premium convertible with California special package. It sounds awesome! I have not done anything to it, it came this way from the factory. I test drove a 2015 mustang and after a little more than a block I returned the car to the lot. It barely has a sound at all...
  10. Dorman 615-175 intake manifold

    4.6L Tech
    2000 GT This replacement intake has the pre installed gaskets right? Will I need to buy the gasket strip separately and place under the manifold? Or do I just clean it off and set the manifold directly on the metal? Will the pre installed gaskets prevent leaks or do I need a separate gasket strip?
  11. 2006 GT Throttle issues

    2005-2010 Mustang GT Tech
    Hey guys, I'm new to the forum. Hopefully I can get some much needed help. These past 3 weeks I have been having issues with my GT. It first started as I was driving down a highway and the RPMs started majorly surging. It started out going from about 2k-4k then gradually went down as I pulled...
  12. Does 2 or 4 Vavle matter with CAI? IE can I put a GT CAI on my Mach 1?

    4.6L Talk
    There are a few CAIs on American Muscle that fit the Mach 1, each ~$275. However under the GT section there's a BBK intake for $200, or an SR Performance (AM's house brand?) for under 100. They say they are for 2V and not 4V, but does that matter with intakes? If I pull up that same BBK intake...
  13. Edelbrock Perfomer Intake clone

    5.0L Tech
    Hey guys I was just curious to see if any of you have experience with the Edelbrock Performer Intake clone sold by different manufactures on summit, late model, or american muscle. I just purchased one to put on my fully built 306 which i have not dropped in yet and I was curious to see how this...
  14. Are bolt on mods worth it?

    2011 Mustang
    I've read all kinds of peoples opinions on bolt on mods. My question is are they really worth it, swapping to a boss intake, or new coil packs, different throttle body you get the jist. If it really is worth it what are the bolt on mods i should look at getting. 2012 gt 5.0
  15. 5.0 engine build. Opinions needed!

    5.0L Tech
    I am building a 5.0 engine over the winter with hopes to drop it into a fox over the summer. I will be grabbing a 5.0 from the junkyard after great inspection, re-ring the bottom end but leave it stock. Doing the classic h/c/i on top. Obviously I am on a budget and my goals are a street car...
  16. 98gt intake manifold swap with 99 intake?

    4.6L Tech
    I have a 98gt and was wondering if I could use my friends intake manifold off his 99gt. Is it a straight swap or do I need other parts besides a gasket to swap them? Will this increase performance or hp or is it pointless?
  17. 1968 Fastback Shelby Intake Manifold Dealer Option???

    Classic Talk
    So i bought this J code GT from an old guy who's a good customer at our shop. he said the car was extremely original and no one messed with the car during its life. it sat in a garage for 25 years. thats why it only has 56k miles. Anyway it has this Shelby intake manifold on the original 302...
  18. Boss Intake Manifold/Tune Question

    2011 - 2014 Mustang GT Tech
    I have a 2014 GT Automatic and was looking at getting the Boss Intake Manifold, but i'm not sure if it would be worth it with you actually losing power until you hit roughly the 5500 RPM range. Now I hear the Bama Street tune is good for the low end power and not as much at the top end. I was...
  19. GT-40 HP gains

    5.0L Tech
    Hi. I just bought a 95 GTS for 1k about a week ago and was wondering if I did a full GT-40 swap heads and intake what kind of realistic HP I could possibly see. My car is completely stock and I see a lot of gt40 explorers in my local junkyards.They have half sales like crazy and i can walk away...
  20. liquid in upper intake

    5.0L Tech
    i went to change my throttle and egr spacer to a 70 mm bbk. and found inside intake some kind of liquid. i put it back together because i spoke to a friend and they said its fine just run it but now im worried. im going to take it off again today and see. anybody have a clue what it could be and...