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Old 08-09-2013, 11:33 AM   #11
Juturna67
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Originally Posted by 67mustang302 View Post
They generally perform better, particularly at higher rpm. Not really gonna do much on a stock engine though. LT's that fit nice can be expensive.
So I should be okay with some shorty's or mid length?
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Old 08-09-2013, 11:41 AM   #12
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Is there a benefit to having long tubes?
Yes..You get a scavenging effect which helps improve hp and even gas mileage..I have never had any fitment problems with longtubes with your combination..There is tons of room with the smallblock engines.Even a relatively cheap header like a hedman should fit your needs.
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Old 08-09-2013, 11:47 AM   #13
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Originally Posted by 67mustang302 View Post
They generally perform better, particularly at higher rpm. Not really gonna do much on a stock engine though. LT's that fit nice can be expensive.
Actually the long tubes perform better everywhere but there advantage over shorties is usually more in the low and mid range.
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Old 08-11-2013, 02:53 PM   #14
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That's what I have now
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Old 08-11-2013, 03:09 PM   #15
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If you want a serious corner carver and plan to make suspension a priority, then a shorty or mid length may be better. If you have serious ground clearance problems in your area (speed bumps, driveway entrances etc) then probably a shorty. If you're concerned about making slightly more power, LT's, especially in a drag car.

Ultimate header would be a custom built stepped header....but you need to have some serious engine to justify that kind of a header (and the expense).
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Old 08-11-2013, 03:33 PM   #16
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what would you suggest then for a 67 289? i was just looking up headers and i had no idea there were different kinds (short, mig, long) so i was just looking at them all. lol.
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