COMP Cams Calibration Test Spring for #5313 Lead Ballast 1975-1978 Ford Mustang II

1975-1978 Ford Mustang II

and more fade resistant

aFe POWER performance air filters use a rounded

Large Opening

COMP Cams Calibration Test Spring for #5313 Lead Ballast 1975-1978 Ford Mustang IICalibrate your miniature valve spring tester (5314) with this calibrated test spring. The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer model, if that theoretical performance doesn't translate into real