I have a 1967 mustang with a 289. The carburetor that is on it is a 2bbl holley. I want to replace the intake and carb with an edelbrock intake and 600 cfm 4bbl edelbrock. The carb on it now is pretty much dead. I dont want to invest money in repairing it because I know I want to do an upgrade. I have a stock dual exhaust on it now and was wanting to replace it with some headers and an x-pipe system to have better exhaust flow. But I was wondering if I replace the with a bigger Intake for now will my car run sluggish if I wait a few months to afford an upgraded exhaust system? Or should I sit my car for a few months and do it all at once? I cannot do anything without the carb first. wasnt sure if i should let the car sit a few months to collect funds for the exhaust.
Go ahead and do your carb and intake. The exhaust can wait and be done later. You can still drive the car just fine until you decide to do the exhaust later on. In fact it's actually better to keep driving the car with a new carb stock exhaust then to let it sit for months without being driven. I basically did the same thing with a '70 Chevelle one time. I put in a high performance motor but kept the stock exhaust. Ran just fine until I was able to afford the upgraded performance exhaust system.
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Keep in mind that some of those years came with a 4bbl set up. Adding those first will hurt your car. I'd actually do that swap first them exhaust. Up to you. Also adding the exhaust first won't hurt performance much either. You're prob going from a 2 1/4 pipe to a 2 1/2 or 2 3/4 which won't decrease back pressure that much. You'll be fine either way.
first things first, if your carb is pretty well shot get that stuff first. as long as the 4bbl is adjusted correctly it will run better than now for sure also a spectre filter is a good idea. then go with exhaust. i would say x pipes arent very important and theyre expensive. go with 2 and a half inch pipe all the way back to some thrush weldeds shouldnt be very expensive. or if you like extreme sound go with glass packs which will be even cheaper. id say shopping around you can find someone to do the exhaust for like 200-300 bucks depending on what you want exactly. this can all work the other way around too. i mean if your carb works fine now you could do the exhaust first if you wanted. no matter which one you pick your performance will be helped for sure with proper adjustment
