Universal HEI Distributor 12V 65K High Output Internal Ignition Coil Only They are installed between the

They are installed between the water pump pulley and the drive flange

this fuel pump is ideal for high-performance applications

Speedmaster crankshafts are nitride-hardened

The larger needle bearing fulcrum can withstand valve spring loads up to 600lbs

Try a set of these Speedmaster finned aluminum valve covers

Universal HEI Distributor 12V 65K High Output Internal Ignition Coil Only They are installed between theThese Speedmaster HEI coils replace the stock distributor mounted HEI coil and produce out a hefty 65,000 Volts of plug firing power. That's 15,000 Volts higher than the OE coil, which results in more completely burned fuel and better all around performance."