Your half-second was environmental and track conditions, as well as the plugs being NEW, and the car running cooler.
how can you says this whitout knowing the facts my old plugs where like new they had been change by the past owner and when i say that i gain on the track its because i sure that the condition are about the same .so far im testing my ported lower and i wont be giving number before all my testing been done .do you have i idea what 3 MPH on the track is. so far i have gain almost a second (16.38 to 15.51) and 3 MPH whitout taking the valve covers off so i must be doing something right
SAVE $30.00! Add up to 10 WHP (13 CHP) to your naturally aspirated car!
The INTENSE™ Level 1 L36/L26 Performance Package includes:
INT-FWI-xxx - INTENSE™ Fenderwell Intake Kit
TST-180 - INTENSE™ High Performance 180 Degree Thermostat
ASP-605 x 6 - Autolite® 605(one heat range colder than stock) Copper Core Spark Plugs
PCM-xxxxx-xxxx - INTENSE™ Standard Powertrain Control Module