Moroso Throttle Return Spring Kit - Holley 4500 - Carb Mount BR40071 Available with FIA 8860-2018 or

Available with FIA 8860-2018 or 8859-SA2020 approvals

Microfiber cloths should not be used

Designed for street and high performance 429/460 c

or pull bar

1963-1974 Buick Riviera

Moroso Throttle Return Spring Kit - Holley 4500 - Carb Mount BR40071 Available with FIA 8860-2018 orClears most air cleaner combinations and can be used with dual carbs Made from sturdy 14 gauge steel and finished in hand polished chrome Kit includes heavy and light sets of stainless steel return springs, all mounting hardware, and complete installation instructions Moroso Performance Products is one of the worlds most respected suppliers of automotive equipment for racing and street performance applications. Moroso manufactures over 4000 products,