98 Summit 583-670

[dooBC]

I just bought a 98 summit was a 583, someone put a 670 in it, i noticed it has a crank shop RV cover, shorty intake boots, and a MBRP can, havent measured the carbs yet....

ive gutted the airbox and re-installed the H.A.C....

was wondering if there's any secrets to gettin more balls out of the 670....

thanks...

 

[Slamnek]

take the HAC off and jet it. Twin pipes will get a few more ponies out of it.

 

[Modman]

Jaws twins work well in the mountains.

Shave the head and run race gas.

Ditch the HAC and jet it correctly.

After that it should keep up with the 800's, and then realize its a 670, so just ride it and enjoy it.