2.02 valves should be avoided on the 416 heads. 1.94 and generous porting is best. 1.50 or 1.60 exhaust.
U use the radar gun inside the car. works right thru the windshield .and it will never read higher than your actual speed.unless you point it at a object that is moving too..1/8th mile testing is just as valid as 1/4 mile testing. but lower speed
The vericom gives you a lot of usefull data especially if you know how to interpret it all.
Every once in a while you get a bogus run, but that shows up clear, as you test.
Some things throw it way off... violent wheel hop... bad (solid core) spark plug wires. arcing conections in car. (bad switches)
error code is the result.
Last edited by F-BIRD'88; 11-12-2012 at 02:16 PM.