Pertronix Flame Thrower HEI
Pertronix Performance Products is a name hobbyists quickly associate with electronic ignition components. The company's complete line of high-performance GM HEI distributors includes new cast-aluminum housings with bronze bushings and new mainshaft assemblies. Each distributor features Pertronix's exclusive Flame Thrower module and coil, which is said to operate without misfire through at least 7,500 rpm, as well as the company's centrifugal advance components and adjustable vacuum advance canister.
Carrying a limited one-year warranty, Pertronix HEIs include a cap in your choice of three colors. Part numbers for Street/Strip Pontiac applications are D1200 (black), D1201 (red), and D1202 (blue). They are available for roughly $229 each from your favorite mail-order supplier or nearest Pertronix distributor.
Pertronix Performance Products, Inc.
440 E. Arrow Hwy
San Dimas, CA 91773
(909) 599-5955
www.pertronix.com.
Proform Street/Strip HEI
Not to be confused with a competitor whose name shares similar likeness, Proform is best known for its line of automotive tools designed to complete various tasks, and myriad components for a number of vehicles, but the company's line of Street/Strip HEI distributors is among the best value it offers to hobbyists. In addition to a new cast aluminum housing, bronze bushings, and mainshaft assembly, Proform's HEIs contain quality electronics that include a 50,000-volt coil and high intensity module, and a red cap with brass terminals.
The centrifugal advance consists of OEM-quality weights and center plate providing 22 to 24 degrees by 3,200 rpm, and an adjustable vacuum advance canister preset to 15 degrees. Available from your nearest Proform distributor or mail-order supplier, Pontiac V-8 HEI (No. 66953) retails for $190.
Proform/Specialty Auto Parts, Inc.
P.O. Box 306
Roseville, MI 48066
(586) 774-2500
www.proformparts.com
Some Considerations
Past testing indicates that OEM-type weights and center plates, like those included with the Performance Distributors and Proform units, seem to offer a smoother centrifugal advance curve than some aftermarket counterparts. If you would like to purchase OEM-type weights and center plates, contact D&D Manufacturing, Inc., Memphis, TN (901) 458-3287 for more information. | 
As the lower bushing of the housing wears, it oftentimes scores the mainshaft, ultimately leading to an excessive amount of lateral play. The examples featured in our buyer's guide are manufactured with mainshafts in new condition like this one. | 
Adjusting the vacuum advance canister on some HEI's is as easy as inserting a hex-wrench into the vacuum port and turning one way or the other. Refer to the instructions or contact the manufacturer for exact adjustment details. |