1969 Dart Street/Strip (Re)Build

Second TnT day over the weekend didn't go all that well. Made a couple passes on the MT drag radials and just smoked the tires every pass. Tried 21 lbs, then down to 18 lbs. No go and only getting mid to low 11's @ 120-122 mph with 28 degrees total timing. Very hot out, very humid too.

So I got a set of slicks mounted on some Weld draglites a little bit back. The lug tolerance on these wheels are apparently very tight. On the Billet Specialties I've been running, the wheel has a thinner thickness and some of the lugs are tight, but they work. With the Welds which have a deep thickness to them at the lug, the nuts won't start. This is because when the studs were tack welded to the axle, the shop got them crooked. This angularity issue prevented me from even getting the slicks on the car. VERY pissed about that. One solution would be to get another set of axles with 3" studs that are actually straight. That will allow me to use spacers as well and not have any issues with tech. It gets through tech now with the current wheels, but it technically shouldn't with the Welds because the studs are short for those wheels and don't protrude out.

So I lost a lot of time messing with the wheels and then went back to the MT radials. I was trying to find where I was getting my best mph with jetting and note that particular A/F ratio, but the consistency didn't seem to be there. I had it fat, I had it lean, mph varied between 120-122, regardless of what jetting I changed on the carb. Fat was running around 12.9-13.1 (80/84 jetting), two jet sizes down to 78/82 and it was lean (ish) at 13.5-13.7. I wanted to go back 1 jet size to 79/83 but ran out of time. That will probably be the jetting that will be close to optimal, depending on weather conditions. When I start advancing my timing, I may end up starting to fatten it back out too since it was only set at 28 degrees. I know it needs more timing but I was trying to change one thing at a time and it was taking too much time to get many runs. I got 5 passes in with a best of 11.24 @ 122 mph. 60 ft's were terrible. I got into the 1.7's once but was staying mostly in the 1.8's and 1.9's. Had the 60ft's not been so bad, I would have started touching back into the 10's again, but the conditions just weren't there.