I JUST BOUGHT A MACH 1 AND I DONT KNOW MUCH?
 

WELL ITS A (69)AND IT HAS A 4B-CARB REBUILT ENG 351W 5.8 I THINK IT SWAPED? I JUST GOT THE TRANSMISSION DONE C4 AND I GOT A SHIFT KIT IN BUT I DONT KNOW WHAT KIND AND A CAM? IT ALSO HAS 2FLOWS,HEADERS THIS **** SOUNDS LOUD AND HAULS *** .BUT WHAT I DONT LIKE IS THAT IT TAKES OFF LIKE A BAT OUT OF HELL IN 1GEAR 2GEAR IT PEELS I CAN HEAR IT AND AT THE LAST GEAR IT STARTS TO KILL AT 100MPH LIKE IT AINT GOT NO MORE BULLS? AND IT OVER HEATS WHATS THE PROBLEM PLEASE GIVE ME SOME SCOOPS!

[This message has been edited by VILLIEN-69- (edited 07-27-2001).]

First let me say you made a good choice of years. The 69's did come with a 351W so this could be the original engine. I would recommend looking at the data plate on the door to find out what options your car came with originally.

You say it dies around 100 MPH, when you say this is the engine reving high or does it sound like it has more?

When you say overheat, when does it do this? In traffic or going down the highway?

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69 351W Sportsroof deluxe

[/b][/QUOTE] WELL IT FEELS LIKE IT COULD GO FASTER BUT AT 3GEAR AT 4500RPM IT SOUNDS LIKE ITS GOING TO BLOW UP COULD IT BE MY REAR END,AND IT OVERHEATS WHEN I RUN IT HARD,I JUST CHANGED THE WATER PUMP?



[This message has been edited by VILLIEN-69- (edited 07-27-2001).]

You might want to check your gear ratio, turn one of the rear tires that makes the drive shaft turn and count how many revolutions it takes for one complete turn of the wheel. If your gears are tall this might be all the speed you are going to get unless you beef up the engine.

You said that you have changed the water pump, have you had the car running with the radiator cap off you should see a flow when the thermostat opens. I know on my car my 2 row radiator would not keep up so I went with a 3 row.

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69 351W Sportsroof deluxe

[/B][/QUOTE] WHAT AFTER MARKET ENGINE PARTS WORK BEST WITH MY CAR,TO MAKE IT HIT OVER 100MPH LIKE NOTING.

I agree with checking the rear axle ratio. Could have some real low rear in it. Like 4.10 or even lower. After you find that out, you'll be able to plan your next move.