■ Adding coil-over racing shocks to the front of your GM doorslammer makes perfect sense . Besides removing unnecessary weight and improving steering performance , coil-overs have other advantages :

• Easy ride height adjustment to get the proper stance

• Quick corner weight and pre-load adjustment to fine tune launches

• Pre-load tuning that straightens out the car after a bad launch

• Valving that eliminates bouncing when landing after wheels-up launches

• Increased space around other suspension components

And there ’ s no easier way to do a conversion than with an AFCO Racing Eliminator Front Coil-Over Conversion Kit . The kits give you a bolt-in , no-modification-required way to ditch the OEM components for superior coil-over shocks while simultaneously improving how your car launches and drives down the track .

AFCO ’ s Eliminator Conversion Kits come with your choice of singleor double-adjustable shocks . The difference between them is easy to explain . When a single-adjustable coil-over is tuned , you are adjusting both the rebound and the compression dampening at the same rate . This means that the coil-over will be stiffer or looser in both directions the shock shaft moves . Double-adjustable coil-overs give you more control because you can adjust the compression and rebound rates independently . For instance , you could tune the coil-over to have a loose rebound for great weight transfer and a stiffer compression rate for more controlled landings after wheels-up launches .

AFCO Racing Eliminator Front Coil-Over Conversion Kits are available for 1967-81 Camaro / Firebird , 1964-77 Chevelle / Malibu , 1978-88 Malibu / Monte Carlo , and 1968-79 Nova .

See the AFCO Racing Eliminator Front Coil-Over Conversion Kits at Summit Racing . www . SummitRacing . com 1-800-230-3030

■ Safeguard performance GM TH400 and 4L80-E vehicles on the street and track with reliable , high-strength servo upgrades from Sonnax – the leader in transmission innovation .

New for fall 2021 , Sonnax billet aluminum Low / Reverse servo pistons prevent failure at any power level — a critical safeguard when cast OE pistons are brittle and prone to breaking . Part No . 34914- 01 fits all TH400 and ’ 95-earlier 4L80-E ; Part No . 34914-02 fits ’ 96-later 4L80-E .

Also new for TH400 and ’ 95-earlier 4L80-E applications is an adjustable servo pin kit ( Part No . 34912-01K ) that gives builders easy access to five of the seven pin options discontinued by GM . The pin covers the five longest lengths for accurately setting Low / Reverse piston travel . It features an O-ring groove to prevent leakage of line pressure past the case pin bore .

Visit www . sonnax . com for details on these and many more Sonnax upgrades .

256.383.6868 PTCRACE . COM

76 | Drag Illustrated | DragIllustrated . com Issue 173