First track run - less than exciting....

Rat--been there done that with my XV,Had a custom 750 carb built by biggs and had the same problem,That carb flowed 840 cfm and we couldn't get the bog out no matter what we did,Had promax (Indiana) build me a 950 and was very pleased till we hit the track and it wouldn't come off the line (Launch) Changed squiter's(up 4 sizes) and didn't take it completely away but improved it greatly and is giving us 1.50-1.60 sixty ft times on drag radials.--Steve