[Rclarkeer]

I have a 1966 mustang coupe with a 289 v8, sporting a 4v carb. I know this engine was rated at 225 horsepower at the crank in 1966, but I was wondering if I could get a guide on how to modify the engine/car to put out at least 250 horsepower at the wheels. Any help would be great!

 

[slorydn1]

Welcome to AFM!!

 

[ONEZ ST]

Welcome to AFM. I recommend going to the classic forum where ideas abound. And there are plenty of folks that know classics inside and out that can really guide you along.

 

[sp66stang]

heads, cam, intake, carb, and a set of headers, should get you where you want to be. bonus is all can be done with the block in the car.

 

[heavy metal]

Welcome to the site!!

 

[Rclarkeer]

Thanks guys!

 

[paul289]

I don't think you need heads to get to the 250 rwhp mark. Some head work, maybe, but not new heads. I think I'm running about 250+ to the wheels, and I've got an Edelbrock 600 cfm carb and Performer intake (I'd rather have an RPM Air Gap, though), Comp Cams Xtreme Energy 262 cam, 1.94 intake and 1.60 exhaust valves with a bit of port work, flat top pistons, and long tube headers, although Tri-Ys work as well. I also have roller tip rockers, stiffer valve springs, screw in rocker studs, and ARP con rod studs to support the power and rpms.