Lotero over on TDR just ran the TST PM3 and the Edge Comp both stacked with the Smarty and he ran better times with the EDGE. I'd say the PowerMax Comp and the Smarty would certainly fuel harder than the Edge Drag Comp but you'll have close ot $1200 in a fueling and timing box. Drag box is less than half that and it does both.

 

So you lose HP with the drag comp/smarty stack??

Which would be quicker or feel stronger, the drag comp or the drag comp/smarty stack??