Last time down the strip it was a 12.8 at 52 because of Massive tire spin. I have a Saginaw 4 speed with 3.50, 2.447,1.65 and 1.0. Right now I have a 2.41(7.5 10 bolt out of a 78 El Camino) gear, but was given a set of 3.23 of 3.42, I cannot remember right now. I plan on using only the first three gears for the 1/8. I cannot go much deeper than 3.42 or my first gear will be way to low. Buying a new tranny is out of the question. IS there much of a difference in power just between the 1.5/1/6 exhaust? Seen sketchey on the hitting water? Lumps and the port work would price the head way out of my price range. I am disabled and my wife works full time and goes to school too. I am scraping parts together and trading stuff to get what work I can get done. I wish I had the cash to drop on a new MrHotrod6 head but that is out of the question.