P/N: 4PFX020-010
©2004 Paxton Automotive Corp.
All Rights Reserved, Intl. Copr. Secured
28JUL04 v1.2(Univ.SBF Carb-4PFX v1.2)
TOOL AND SUPPLY REQUIREMENTS:
• Factory Repair Manual
• 3/8" Drive and Socket Set: SAE and Metric
• 1/2" Drive and Socket Set: SAE and Metric
• Open End Wrenches: SAE and Metric
• Center Punch
• SF Rated Quality Engine Oil
• Loctite
Sealer #RC-609
This kit should only be installed by qualified mechanics. It is imperative that the correct
air/fuel mixture be maintained at all times. This Kit is to be supplied to competent
engine tuners for their completion by the addition of, and tuning of, an appropriate
carburetor unit.
This product is intended for use on healthy, well maintained engines. Installation on a
worn-out or damaged engine is not recommended and may result in failure of the engine.
Paxton Automotive is not responsible for engine damage. Installation on new
engines will not harm or adversely affect the break-in period so long as factory break-
in procedures are followed.
Universal Small Block Ford
Carbureted System
Installation Instructions
• Oil Filter, and Wrench
• Heavy Grease
• Silicone Sealer
• Teflon
Paste Sealant
• TAP, 3/8-18 NPT
PLEASE READ CAREFULLY
For best performance and continued durability, please take note of the following key
points:
1. Use only premium grade fuel 91 octane or higher (R+M/2).
2. The engine must have stock or lower than stock compression ratio.
3. If the engine has been modified in any way, check with Paxton prior to using this product.
4. Always listen for any sign of detonation (pinging) and discontinue hard use (no boost) until
problem is resolved.
5. Perform an oil and filter change upon completion of this installation and prior to operating the
vehicle. Thereafter, always use a high grade SF rated engine oil or a high quality synthetic,
and change the oil and filter every 3000 miles.
6. Before beginning installation, replace all spark plugs with one to two step colder heat range
and reset timing to no more than 26° total or install a boost retard ignition. (Always follow the
procedures indicated in the factory repair manual.)
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