[Jeff Teuton]

NHRA has a long policy of allowing and encouraging converting IRS into straight axle in Stock and I think it is a requirement in SS. The oldest I know of in Stock is Sammy Pizzalato's 427 Vette. He and Mark Oswald did his car. I think they have a allowable conversion for all IRS cars. The DP, Copo and SCJ were allowed as produced except the DP which had an allowable conversion which had to follow engineers drawings that came with each car as they had no rear. The conversion of the showroom cars is considered a safety factor. I assume the C5 Corvette is the Sherman and Cummins types. I know Moser makes a package which I assume is the NHRA allowable for that car. I also know we have a Viper that a friend of mine has run for years, a 97 model. As we souped it up about 9.50 or so and about 135-140 with the IRS, you weren't driving the car past 1000 ft. You were just hoping it kept going straight. We put a cage and 4 link in it with a straight axle and it became very safe and driveable. We later got the car to about 9.20 and about 150 and is very good at those times. And maybe I am not following your thought train. On the HP reduction, take Bailey (who always starts this stuff), his car is about 450 factored, drop that 10%, or 45 @ 7 lbs or 315 lbs. 3 or 4 tenths about. And I think a U/SA (my favorite class), I think the weight reduction might be in that range. Moveable weight at that. I think anyone with an IRS racing today, either has not converted or has not asked NHRA. If I'm going to be bogus, I want all my friends to come with me; the Hills, the Nolans, the Baileys, and even the people who don't like me. If you like me, you have to buy the beer, if you don't like me, you probably don't talk to me anyway.