The 1947 - Present Chevrolet & GMC Truck Message Board Network

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The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)

- Engine & Drivetrain (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=24)

- - Cheap performance mods thread! (https://67-72chevytrucks.com/vboard/showthread.php?t=543999)

GuyO	10-02-2012 07:19 PM

Re: Cheap performance mods thread!

CableGuyO is onto something. "Super Tuning" will make a huge difference. To “super-tune” the engine means to weaken the carbs secondary throttle body springs so that the second chamber opens quicker, richen the carb jetting (or install a larger carb.), quicken the distributor advance curve using the appropriate springs, and lower the coolant temperature.

jimbonice

10-04-2012 12:05 PM

Re: Cheap performance mods thread!

Quote:

Originally Posted by cableguy0 (Post 5605708)

The absolute cheapest power you can get is setting the timing and ignition curve properly. A weight and spring kit for an hei is 9 bucks. In most cases between setting the curve and timing properly its worth 25+ horsepower for under 10 bucks and an hours work.

I have to agree. A decent timing light and distributor weights and springs are cheap. Getting your initial and total timing properly set can add significant power.
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INSIDIOUS '86

10-04-2012 02:03 PM

Re: Cheap performance mods thread!

An intake of Craigslist is always a good deal as well as milling your heads for more compression if your head is stock. There is a lot you can do to heads for about 200
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