check out www.mattyinovations.com it's basicly a down track timer w/ display that tells you if your going too fast or too slow in real time so It would make your car deadly!!! say your running too fast a light comes on and you pump the gas a couple time until it goes out and your safe.... I'm pretty sure it was legal until 93 or 94 back when Matty won the bracket finals
Andrew Brough D372
1969 Dodge Dart GTS
1.43 60'best
6.82 1/8 98mph
"the light came on and I ran out of talent"
it's basicly a down track timer w/ display that tells you if your going too fast or too slow in real time 
so It would make your car deadly!!! say your running too fast a light comes on and you pump the gas a couple time until it goes out and your safe.... I'm pretty sure it was legal until 93 or 94 back when Matty won the bracket finals
