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#1
02-20-2004, 05:27 PM
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more horse power
i have a 65 lemans w/ 389 and holley 4 brl. what is the easiest and best and most inexpensive way to add some horsepower. i am yet in a situation to throw alot of money into it. what would yall recommend? thanks yall?
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#2
02-21-2004, 08:28 PM
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Re: more horse power
Get a nice camshaft, those depending on the type can raise the hp by about 25.
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My Garage 1. 1965 Pontiac GTO Tri-Powered 360hp 424 lbft torque 2. 1968 Pontiac GTO 3. 1969 Pontiac GTO Looking for any Pontiac 1979 and earlier "In order to establish a sportscar, you have to race it." -Zora Duntov "There's no replacement for displacement" Super Duty- Everything a Pontiac ought to be (until Ford swiped the name for it's truck line.)
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#3
02-27-2004, 12:43 PM
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As previously mentioned, camshaft. Also, add 400 large valve/small chamber heads and a '68-'71 factory intake (or Edelbrock Performer) with a nice Q-Jet. HEI ignition (from any '76-'79 Pontiac V8), Hooker Comps or SuperComps (the latter being a LOT more money). Highly recommend Comp XE262H for a nice streetable power band and idle quality. The 389 is a good engine, but the later stuff breaths a whole lot better, and is still fairly reasonable in price, avoiding the "Ram Air" moniker.
Above all else, be sure you approach it with a relatively low RPM range (up to 5,500). If you build it like a Chevy, it won't live. If you build it like a Pontiac, it will smoke the Chevys and live, too!
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