So I am racing the ole fish and found 0.2
I made my first ever pass on a track in the 68 340 fish I bot almost a year ago. Car was doing 8.60's on some old Cooper Cobra 255/60 street tires. Was slipping badly at the line. So after about 4 passes the car is getting slow to crank over. Had to jump it to get back on the trailer. Found the problem next day - the wire to the alternator was off the post. Fixed that and next week was running 8.80. Same the next week (remember the wheel spin?) so I put on a set of M&H 275/60 drag radials and went back to the track. Ran 8.73-80 again. So it was experiment time. off comes the race weight 6 pk hood to see if I needed fresh air to the carb. Nope, no change. Then I unhooked the alternator fireld wire and my 8.60 is back!
Darn alternator is expensive time wise. Now have a switch above the volt meter that I can turn off when I get to the line.