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#1
06-06-2002, 08:27 PM
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I want to add horsepower to my 71 GTO. It has an 400 with a 400 turbo hydro automatic transmission. The engine has been worked already and I believe it is .030 over or possibly .060 over (the previous owner was not sure). It has an msd ignition, a 14" K&N filter on a Carter Comp 4 barrel Carb, a new 3 inch exhaust (mufflers look stock), 10 bolt rear, a Crane Cam. I was told by the last owner that it is pushing between 350 and 370 horsepower. I would like to get it somewhere above 400. I know that it still has the original points. Mabey a new MSD distrubuter and a good blaster coil??? If anyone has any ideas let me know. The only thing is I don't want to put in a nitrous syster or any kind of supercharger.
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#2
06-06-2002, 08:27 PM
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I want to add horsepower to my 71 GTO. It has an 400 with a 400 turbo hydro automatic transmission. The engine has been worked already and I believe it is .030 over or possibly .060 over (the previous owner was not sure). It has an msd ignition, a 14" K&N filter on a Carter Comp 4 barrel Carb, a new 3 inch exhaust (mufflers look stock), 10 bolt rear, a Crane Cam. I was told by the last owner that it is pushing between 350 and 370 horsepower. I would like to get it somewhere above 400. I know that it still has the original points. Mabey a new MSD distrubuter and a good blaster coil??? If anyone has any ideas let me know. The only thing is I don't want to put in a nitrous syster or any kind of supercharger.
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#3
06-06-2002, 09:01 PM
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any headers?, headwork?,what type carb? and what size, type( solid, hyd.) cam is in the car? roller rockers ?(1.65?), changing the ignition won`t make a noticable difference, what type of heads do you have? all kind of things can make more horsies! and still look stock!
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#4
06-07-2002, 03:40 PM
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You need to post specifics about the engine. Sometimes that can be difficult. You need to find out what heads, Intake, cam lift and duration you have. The heads and Intake along with the cam make most of the power. Also the size (in cfm) the carb is. The only thing a MSD ignition would do for you would make the ignition system more reliable. Changing the rear gears also helps in getting the car to go faster in less time. The trans and converter also need to be identified. Is it a stock trans th400 or th350? Once these can be determined modifications and changes can be made.
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